Wednesday, November 21, 2012

Woman, 51, spends up to 18 hours a day confined to a cage as she claims it protects her against allergy to modern technology

A woman spends up to 18 hours a day confined to a cage because she claims she is allergic to modern technology. Velma Lyrae, 51, says she can’t use a mobile phone, satnav or WiFi, or even use a hairdryer to blow dry her hair. 

Instead she spends her days reading books, doing artwork and writing letters, all from the comfort of her Faraday cage She suffers from electromagnetic hypersensitivity syndrome (EHS) which means she cannot stand to be near electromagnetic fields. 

Velma’s condition emerged with the arrival of 3G mobile phones, although she believes a previous electric shock made her more susceptible. As a teenager Velma suffered a shock when she touched the switch of an electric fire in her bathroom. At first the symptoms were barely noticeable but they have become progressively worse over time.
Velma sleeping in her homemade Faraday cage, which shields her from static electric fields

Now unable to work, Velma suffers agonising head and nerve pain, memory loss, tinnitus, heart palpitations, vertigo and aching joints if she goes anywhere near technology - and is forced to spend every day in a makeshift cage in her flat in Blackheath, London.

 Velma made the cage herself from second hand material costing £300. A brand new cage would have cost her £800. She claims metal fibres in the netting reflect the electro-magnetic waves and stop her from suffering EMS symptoms. 

She said: 'I can’t do anything that normal people do without my symptoms showing. I have to do everything in my cage - eat, sleep, read, write. 'I always wear a shielded scarf round my head when I leave the house to protect myself from radiation signals. 'It’s made my life a living hell.'

Early death link to muscle power


How muscular you are as a teenager may predict how long you live, at least if you are a man.
Swedish experts who tracked more than a million teenage boys for 24 years found those with low muscle strength - weaker leg and arm muscles and a limp grip - were at increased risk of early death.
The team behind the BMJ study believe muscle strength reflects general fitness, which would explain the link.
Experts stress the findings do not mean muscle building makes you live longer.
The effect of poor muscular fitness in those tracked was similar to well established risk factors for early death, such as obesity and high blood pressure.

“
Start Quote

The benefits of being physically active at any age are well established”
British Heart Foundation
When the researchers took into account these better known risk factors, they found the link between early death and muscle power remained.
Thin and fat men alike fared worse in terms of life expectancy if they had weaker than average muscles, while more burly men had better survival odds even if they were overweight.
Over the course of the study, 26,145 (2.3%) of the men died. The leading single cause of death was accidental injury, followed by suicide, cancer, heart disease and stroke.
A third of the deaths were due to other causes and the researchers grouped these together for their calculations.
The teenagers who scored above average on muscular strength at the start of the study had a 20-35% lower risk of early death from any cause and also from cardiovascular diseases.
They also had a 20-30% lower risk of early death from suicide and were up to 65% less likely to have any psychiatric diagnosis, such as schizophrenia or depression.
In comparison, the 16- to 19-year-olds with the lowest level of muscular strength had the highest risk of dying before they reached their mid-50s.
The teenagers, who were all conscripts to the Swedish military, were asked to grip and to do some leg curls and arm push ups against resistance to measure muscle strength.
A spokeswoman for the British Heart Foundation said: "The benefits of being physically active at any age are well established with studies showing it can prevent children from developing diseases later on in life, as well as improving their concentration at school, their overall mental health and well-being."
Stephen Evans, professor of pharmacoepidemiology at the London School of Hygiene and Tropical Medicine, said while there was good evidence exercise was beneficial for health, the study did not show doing more exercise would necessarily prolong your life.
And encouraging people to do more regular physical activity could be a challenge, he added.
"Sadly the trials of an intervention to increase exercise have not shown notable benefits, though that does not discourage me and many others from exercising," Prof Evans said.
Source:BBC

Monday, November 19, 2012

Diesel exhaust can cause cancer, World Health Organization says


Diesel engines power commerce and transportation around the world, but the exhaust they produce can prove deadly. The World Health Organization (WHO) announced on Tuesday that it now classifies diesel exhaust as a cause of cancer. While major advances in technology have helped clean up some diesel pollution in the United States, the findings could have serious implications for developing countries still relying on dirty diesel power.
Following a week-long meeting of experts, the WHO’s International Agency for Research on Cancer concluded there was sufficient evidence that diesel exhaust can cause lung cancer, and noted it may also increase the risk of bladder cancer. Gasoline exhaust remains classified as a “possible” carcinogen, a WHO status that has not changed since a 1989 evaluation.
California’s Air Resources Board classified diesel as cancer-causing in 1998, and passed a number of regulations to reduce the public’s diesel pollution exposure from sources like trucks, ports and agricultural equipment. 
The WHO’s announcement validates California’s efforts, said Diane Bailey, a senior scientist with the Natural Resources Defense Council in San Francisco. “It’s a signal to the international community that we really need to take diesel pollution seriously,” Bailey said. “It’s a major global health threat to people throughout the world.” She added that tens of thousands of people die from exposure to diesel exhaust every year.
Diesel exhaust contains tiny soot particles that can pass through the lungs into the bloodstream, carrying heavy metals, sulfates and other chemicals. “The health risks of diesel exhaust are a little like smoking a couple of cigarettes a day, the difference being that you don’t choose” to be exposed, Bailey said.
However, these risks are largely preventable, thanks to low-sulfur diesel and more efficient engines with improved filtration. “We really have diesel that’s near zero emissions for fine particles and nitrogen oxides,” said Allen Schaeffer, the executive director of the Diesel Technology Forum. A recent study by the Health Effects Institute found that exhaust from diesel engines meeting the 2007EPA standards, which reduce particle emissions by 90%, only slightly decreased lung function in rats.
California’s trucking industry has already taken many steps to comply with Air Resources Board regulations, such as installing particle filters, said Michael Shaw, a spokesperson for the California Trucking Assn. However, the costs of such upgrades get passed on to consumers buying items like a gallon of milk or a loaf of bread, he said.
The trucking industry is currently experiencing a “renaissance” in terms of alternative fuels, Shaw said, “everything from liquified natural gas, to hybrid trucks and all-electric trucks.” But he added that these alternatives comprise just a small percentage of fuel used by the trucking industry, which is projected to rely predominantly on diesel well into this century.
Although the United States has made progress to clean up diesel pollution, exposure is a serious issue in the developing world, Bailey said. “We’re starting to see the sales of diesel vehicles skyrocket.”
In order to take advantage of cleaner diesel technology, developing countries first need to adopt cleaner fuel standards, Schaeffer said. The low-emission engines won’t work properly on diesel high in sulfur.
A June 2012 United National Environment Programme map of sulfur content standards in diesel fuel around the world shows that North America, Europe and Australia have the highest standards, but that the sulfur problem is worse – and sometimes much worse – in large parts of the globe.
 “It’s the challenge of getting the clean equipment and the clean fuel together,” he said. “That becomes a big problem in a hurry outside of the U.S.”

Thursday, November 15, 2012

Drugs that may cause impotence

 Various medications and recreational drugs can have an effect on s*xual arousal and s*xual performance. What causes impotence in one man may not affect another man.

If you think that a medication you are taking is having a negative effect on your s*xual performance, discuss the matter with your health care provider. Never stop taking any medication without first consulting your health care provider, because some medications can produce life-threatening reactions if they are not carefully and slowly stopped or switched appropriately.

The following is a list of medications and nonprescription drugs that may cause impotence:
Antidepressants and other psychiatric medications:
  • Amitriptyline (Elavil)
  • Amoxapine (Asendin)
  • Buspirone (Buspar)
  • Chlordiazepoxide (Librium)
  • Chlorpromazine (Thorazine)
  • Clomipramine (Anafranil)
  • Clorazepate (Tranxene)
  • Desipramine (Norpramin)
  • Diazepam (Valium)
  • Doxepin (Sinequan)
  • Fluoxetine (Prozac)
  • Fluphenazine (Prolixin)
  • Imipramine (Tofranil)
  • Isocarboxazid (Marplan)
  • Lorazepam (Ativan)
  • Meprobamate (Equanil)
  • Mesoridazine (Serentil)
  • Nortriptyline (Pamelor)
  • Oxazepam (Serax)
  • Phenelzine (Nardil)
  • Phenytoin (Dilantin)
  • Sertraline (Zoloft)
  • Thioridazine (Mellaril)
  • Thiothixene (Navane)
  • Tranylcypromine (Parnate)
  • Trifluoperazine (Stelazine)
Antihistamine medications (certain classes of antihistamines are also used to treat heartburn):
  • Cimetidine (Tagamet)
  • Dimenhydrinate (Dramamine)
  • Diphenhydramine (Benadryl)
  • Hydroxyzine (Vistaril)
  • Meclizine (Antivert)
  • Nizatidine (Axid)
  • Promethazine (Phenergan)
  • Ranitidine (Zantac)
High blood pressure medicines and diuretics ("water pills"):
  • Atenolol (Tenormin)
  • Bethanidine
  • Bumetanide (Bumex)
  • Captopril (Capoten)
  • Chlorothiazide (Diuril)
  • Chlorthalidone (Hygroton)
  • Clonidine (Catapres)
  • Enalapril (Vasotec)
  • Furosemide (Lasix)
  • Guanabenz (Wytensin)
  • Guanethidine (Ismelin)
  • Guanfacine (Tenex)
  • Haloperidol (Haldol)
  • Hydralazine (Apresoline)
  • Hydrochlorothiazide (Esidrix)
  • Labetalol (Normodyne)
  • Methyldopa (Aldomet)
  • Metoprolol (Lopressor)
  • Nifedipine (Adalat, Procardia)
  • Phenoxybenzamine (Dibenzyline)
  • Phentolamine (Regitine)
  • Prazosin (Minipress)
  • Propranolol (Inderal)
  • Reserpine (Serpasil)
  • Spironolactone (Aldactone)
  • Triamterene (Maxzide)
  • Verapamil (Calan)
Among the antihypertensive medications, thiazides are the most common cause of ED, followed by beta-blockers. Alpha-blockers are, in general, less likely to cause this problem.
Parkinson's disease medications:
  • Benztropine (Cogentin)
  • Biperiden (Akineton)
  • Bromocriptine (Parlodel)
  • Levodopa (Sinemet)
  • Procyclidine (Kemadrin)
  • Trihexyphenidyl (Artane)
Chemotherapy and hormonal medications:
  • Antiandrogens (Casodex, Flutamide, Nilutamide)
  • Busulfan (Myleran)
  • Cyclophosphamide (Cytoxan)
  • Ketoconazole
  • LHRH agonists (Lupron, Zoladex)
Other medications:
  • Aminocaproic acid (Amicar)
  • Atropine
  • Clofibrate (Atromid-S)
  • Cyclobenzaprine (Flexeril)
  • Cyproterone
  • Digoxin (Lanoxin)
  • Disopyramide (Norpace)
  • Estrogen
  • Finasteride (Propecia, Proscar, Avodart)
  • Furazolidone (Furoxone)
  • H2 blockers (Tagamet, Zantac, Pepcid)
  • Indomethacin (Indocin)
  • Lipid-lowering agents
  • Licorice
  • Metoclopramide (Reglan)
  • NSAIDs (Ibuprofen, etc.)
  • Orphenadrine (Norflex)
  • Prochlorperazine (Compazine)
  • Pseudoephedrine (Sudafed)
Opiate analgesics (painkillers)
  • Codeine
  • Fentanyl (Innovar)
  • Hydromorphone (Dilaudid)
  • Meperidine (Demerol)
  • Methadone
  • Morphine
  • Oxycodone (Oxycontin, Percodan)
Recreational drugs:
  • Alcohol
  • Amphetamines
  • Barbiturates
  • Cocaine
  • Marijuana
  • Heroin
  •  Nicotine 
Source:US National Institute of Health

Monday, November 12, 2012

How to improve your sleep

 A lot of people struggle with sleep issues, often due to a stressful lifestyle or too many stimulants. But the health benefits of getting good-quality sleep are immense, so do put some effort into it. One of the ways is to sort out what I call 'sleep hygiene’. 

This means that, pre-bedtime, you should make sure your bedroom is really quiet, the temperature is comfortable and all light is minimised. Even little things like the light from a digital alarm clock have been shown to keep certain parts of the mind active, so use some eyeshades. You should be getting eight hours of sleep, and the earlier you go to sleep the better.
A helpful nightcap Leave at least two hours or so between dinner and bedtime, and avoid caffeine and alcohol before you sleep, too. Drink camomile tea an hour or so before you go to sleep, or try mulberry tea; it’s calming and helps balance blood-sugar levels. You could also sprinkle a few drops of lavender or lemon-balm oil on to your pillow.
Fit for bed Ensure you exercise regularly. It has a really positive effect on sleep and also helps with stress management. Aim for three one-hour sessions a week. But don’t spend all the time on a high-energy cardiovascular workout; exercise for around 45 minutes, then use the last 15 minutes to focus on deep breathing and stretching.

 This will train your body to switch out of a highly stressed state to a calming one, which is good practice for falling asleep
At a stretch Before you go to sleep, there is one yoga pose that automatically calms you down. While sitting on your bed, lean forward over your legs and try to touch your ankles. This is a relaxing stretch, so go to your limit and don’t push it any further. You can even put a pillow on your knees and relax your head there. 

Remain in that position for five minutes, taking deep abdominal breaths. This posture has been shown to calm the nervous system, bring down blood pressure and help with any headaches, all of which will enhance your slee.
Switch off completely Watching television or staying up late using your laptop close to bedtime can disrupt your sleep cycle. The light pulsation from the screen activates the cerebral cortex of the brain (the thinking part), so you’ll find it more difficult to go to sleep. You can read, write or be on the telephone, if you need to

Why do we sneez and why Can't We Sneeze With Our Eyes Open?

 It's true that we can't sneeze with our eyes open, because the action of closing eyes and sneezing is automatic.Sneezing is good for us. It aids in getting rid of germs and other foreign particles out of the body. When something tickles in the nose, or if you have a cold or a dust particle stuck in the nose; then the body's natural response is to sneeze.
 
 However, one thing that seems impossible while sneezing is - to keep the eyes open. Yep, we can't sneeze with our eyes open. Here's more on this ordinary phenomenon.

The Science of Sneezing

As already mentioned, sneezing is an automatic action. It is a reflex. The medical term for sneezing is sternutation, which means the act of involuntary expulsion of air from the nose.

Call it an involuntary or automatic action, reflex, natural response, the fact remains that it is next to impossible to keep your eyes open while sneezing! As you can't control air escaping out of your nose during a sneeze, you will not able to control the motion of your eyes too. 
The muscles of the eyes act automatically when the action of sneezing occurs. The whole action of sneezing is quite a complex process; when the inside wall of your nose gets tickled, a message is sent to the sneeze center inside your brain. This center sends a message to the muscles of chest, diaphragm, stomach, back of the throat and the eyelids. All these muscles work in tandem to sneeze out the irritants.

Therefore, not only the eyelids, but also chest or stomach muscles are beyond your control during a sneezing action. On the other hand, there have been some instances where people have managed to sneeze while keeping their eyes open. Weird, huh?

Yes, some rare individuals can sneeze with their eyes open. However, it is not natural. These people train themselves to sneeze while keeping the eyelids open with their fingers. Ouch! Sounds painful... You can check out several videos of this body trick on the Internet.

Here are two myths related to sneezing which are now debunked.

Myth #1: Your eyes will pop out, if you do not close them while sneezing.

Myth #2: The germs or irritants that are expelled during a sneeze can go right back into your eyes, if you do not keep them closed.

Interesting Facts About Sneezing

The fastest sneeze recorded is 103.6 mph (167 km/h)!
Did you know that there are people who sneeze when they are exposed to sunlight? They are called photic sneezers. It seems this condition runs in the family.
Plucking hair from your eyebrow can make you sneeze
Iguanas sneeze more often than other animals. They sneeze to get rid of salts which are formed during digestion.
Did you know that Donna Griffiths from England has the longest sneezing attack of 978 days?

Body Tricks That are Impossible to Do

Just as you can't keep your eyes open while sneezing, there are certain body tricks that you will find are beyond the bounds of your ability.

You can't lick your elbow.
You can't tickle yourself.
Everybody's seen Samantha twitch her nose in Bewitched, but the trick is impossible to do, at least by a human.You can't lick your nose or chin.

Here is something you can try. Sit on a chair and start making clockwise circle with your right foot on the floor. Then, with your right hand's index finger try to draw '6'. Impossible, isn't it?

Though, the aforementioned tricks are impossible to perform for an average individual, a few people can do them with considerable ease. Just like most of us can't really put our whole fist in the mouth, but some people gifted with small hands and big mouth, can accomplish this feat.

Scientists still can't explain why we can't keep our eyes wide open while sneezing. Hence, it is reasoned out that it is the body's natural response to keep the eyes closed while sneezing. Anyway, next time you sneeze, bless you!

Menstrual cycle 'affects asthma'

 A woman's menstrual cycle affects the severity of respiratory symptoms, potentially worsening conditions such as asthma, a study suggests.
Norwegian researchers studied almost 4,000 women, and found worse symptoms around ovulation.
Writing in the American Journal of Respiratory and Critical Care Medicine, they said it may be possible to adapt women's medication.
Asthma UK said it could help women with asthma manage their condition better.
All the women studied had regular menstrual cycles lasting 28 days or less, and none were taking hormonal contraceptives.
Of those studied, 28.5% were smokers and 8% had been diagnosed with asthma.
Wheezing symptoms were worse between days 10 to 22 of cycles, with a slight dip near the point of ovulation for most.
Shortness of breath was worse on days seven to 21, again with a slight fall around ovulation.
The study found it was not just women diagnosed with asthma who experienced these symptoms and variations.
Coughing was worse following ovulation for those with asthma, those who were overweight and smokers.
'Pronounced' variations
When an individual woman has her period is determined by complex hormonal processes over the course of her cycle.
Throughout, levels of different hormones rise and fall - and body temperature rises around ovulation.
The researchers suggest that these fluctuations may have direct effects on airways. and indirect effects on inflammatory responses to infection.
Writing in the journal, the researchers led by Dr Ferenc Macsali, of the Haukeland University Hospital in Bergen, Norway, said: "We found that respiratory symptoms varied significantly during the menstrual cycle.
"There were large changes in symptom incidence through the cycle for all symptoms."
They also found "pronounced" symptom variations during the menstrual cycle in women with asthma, and say the findings suggest women might need tailored medication regimes.
"Adjustment of asthma medication to the menstrual cycle may potentially improve the efficacy of asthma treatment and reduce disability and health costs related to asthma in women."
Triggers
Dr Macsali added: "Our results point to the potential for individualising therapy for respiratory diseases according to individual symptom patterns.
"Adjusting asthma medication, for example, according to a woman's menstrual cycle might improve its efficacy and help reduce disability and the costs of care."
Dr Samantha Walker, of Asthma UK, said: "This research is really interesting, and could help women with asthma to manage their condition better.
"Asthma can be triggered by many different things, and this varies from person to person - but we always encourage people with asthma to be aware of things that trigger their symptoms so that they can take steps to control them. 

"If women with asthma notice that their symptoms are worsening at key times of the month then they can take preventive measures such as having inhalers that are within date, working and contain enough doses of medicine to see them through the times when they are most affected."
 Source:BBC

Friday, November 9, 2012

Effect of too much sitting(A MUST READ)


All those hours Americans spend in their office chairs or on their sofas may be packing on a particularly unhealthy form of fat around the heart, a new study suggests.

What’s more, the fat stayed in place even when people undertook regular exercise, according to a study reported this week in Los Angeles at the annual meeting of the American Heart Association.


CT scans of more than 500 older Americans found that excess time spent sitting “was significantly related to pericardial fat around your heart,” said study lead author Britta Larsen, a postdoctoral researcher in the department of cardiovascular epidemiology at the University of California, San Diego.

There have been numerous large studies recently suggesting that when it comes to its deleterious health effects, sitting is not just the absence of physical activity — it has effects on the body that go beyond lack of exercise.

According to Larsen, that means that “even if you run every day but then you sit for eight hours a day, the sitting is still doing something bad for your health.” She also noted that studies have found sitting to be detrimental to health even after scientists factored out excess weight gain.

“So, we wanted to see if sitting was related to the distribution of fat, because different types of fat are worse than others,” Larsen said.

The study looked at data on 504 Californian adults, average age 65. In particular, Larsen’s team examined CT scan data that showed how much of certain types of body fat were deposited in each participant’s body.

“We looked at subcutaneous fat, which is stuff on the outside [for example, a "pot belly"]; then visceral fat, which is around your organs; intramuscular fat, which is actually in your muscles; intrathoracic [chest cavity] fat; and pericardial fat, which is around your heart,” Larsen said.

The participants were also asked about the amount of time per week they spent sitting and how much time they had spent being physically active.

The study found that the more time spent sitting, the bigger the area of fat deposited around a person’s heart, Larsen said. She explained that pericardial fat “is strongly related to cardiovascular disease. It gets in the way of heart function, it clogs up your arteries — you don’t want it there.”

Prolonged sitting was not significantly related to any of the other types of fat, the study found.

There was also bad news for people who sit a lot but assume that they can exercise away all that pericardial fat. According to the study, regular exercise was not related to a lessening of pericardial fat, although it did help reduce visceral fat around the organs, which is strongly tied to diabetes and metabolic disease.

All of this means that for people who want to prevent the buildup of unhealthy fat deposits, exercise may not be enough.

The study “really emphasizes that [sitting and exercise] are two distinct behaviors,” Larsen explained. “In order to really be healthy you need to focus on both — get enough exercise but also not sit for 10 hours per day like most of us do.”

She agreed that is probably a tall order for millions of office-bound Americans. Still, simple innovations, such as “standing desks,” or getting up for a stroll every hour or two at work can help mitigate sitting’s effects.

“Sitting really is bad for your heart,” Larsen said. “So we are hoping that the workplace, especially, becomes more standup-friendly.”

One expert said the study raises interesting issues, but it’s too early to link sitting with heart disease and heart attack.

“Other studies have indicated that pericardial fat is associated with cholesterol blockages, particularly in people who are less obese,” noted Dr. Stephen Green, associate chairman in the department of cardiology at North Shore University Hospital in Manhasset, N.Y.

However, he added, “in this study there was no direct linkage between sitting and heart attacks, or sitting and cholesterol blockages.”

Study author Larsen also stressed that the study could only point to an association between sitting and pericardial fat, it could not prove a cause-and-effect relationship.

Dr. Sripal Bangalore, an assistant professor of medicine at NYU School of Medicine in New York City, added that the study may help unravel the mystery of why a “couch potato” lifestyle is so unhealthy.

“The current study shows that a sedentary lifestyle may have a differential increase in fat accumulation based on activity level,” he said. “It is very intriguing and should be confirmed in future studies,” Bangalore added.

“I guess until that time, it is time to sit less and be more active,” said Bangalore, who is also director of research at the Cardiovascular Outcomes Group at NYU Langone Medical Center.

Findings presented at medical meetings are typically considered preliminary until published in a peer-reviewed journal.

Hormones in menstrual cycle 'affect asthma'


A woman's menstrual cycle affects the severity of respiratory symptoms, potentially worsening conditions such as asthma, a study suggests.

Norwegian researchers studied almost 4,000 women, and found worse symptoms around ovulation.

Writing in the American Journal of Respiratory and Critical Care Medicine, they said it may be possible to adapt women's medication.

Asthma UK said it could help women with asthma manage their condition better.

All the women studied had regular menstrual cycles lasting 28 days or less, and none were taking hormonal contraceptives.

Of those studied, 28.5% were smokers and 8% had been diagnosed with asthma.

Wheezing symptoms were worse between days 10 to 22 of cycles, with a slight dip near the point of ovulation for most.

Shortness of breath was worse on days seven to 21, again with a slight fall around ovulation.

The study found it was not just women diagnosed with asthma who experienced these symptoms and variations.

Coughing was worse following ovulation for those with asthma, those who were overweight and smokers.

'Pronounced' variations
When an individual woman has her period is determined by complex hormonal processes over the course of her cycle.

“Start Quote

This research is really interesting, and could help women with asthma to manage their condition better ”

End Quote Dr Samantha Walker, Asthma UK
Throughout, levels of different hormones rise and fall - and body temperature rises around ovulation.

The researchers suggest that these fluctuations may have direct effects on airways. and indirect effects on inflammatory responses to infection.

Writing in the journal, the researchers led by Dr Ferenc Macsali, of the Haukeland University Hospital in Bergen, Norway, said: "We found that respiratory symptoms varied significantly during the menstrual cycle.

"There were large changes in symptom incidence through the cycle for all symptoms."

They also found "pronounced" symptom variations during the menstrual cycle in women with asthma, and say the findings suggest women might need tailored medication regimes.

"Adjustment of asthma medication to the menstrual cycle may potentially improve the efficacy of asthma treatment and reduce disability and health costs related to asthma in women."

Triggers
Dr Macsali added: "Our results point to the potential for individualising therapy for respiratory diseases according to individual symptom patterns.

"Adjusting asthma medication, for example, according to a woman's menstrual cycle might improve its efficacy and help reduce disability and the costs of care."

Dr Samantha Walker, of Asthma UK, said: "This research is really interesting, and could help women with asthma to manage their condition better.

"Asthma can be triggered by many different things, and this varies from person to person - but we always encourage people with asthma to be aware of things that trigger their symptoms so that they can take steps to control them.

"If women with asthma notice that their symptoms are worsening at key times of the month then they can take preventive measures such as having inhalers that are within date, working and contain enough doses of medicine to see them through the times when they are most affected."

7UP Sued Over Antioxidant Claims


Although the label on 7UP's new line of antioxidant regular and diet sodas claims "There's never been a more delicious way to cherry pick your antioxidant!" the consumer group has cried foul and it's suing the soda's maker, Dr Pepper Snapple Group, for making false health claims.

CSPI said the drinks contain not a single drop of fruit juice and only a "small amount" of added vitamin E -- which the group claims has no proven antioxidant benefits anyway.

"Nondiet varieties of 7UP, like other sugary drinks, promote obesity, diabetes, tooth decay, and other serious health problems, and no amount of antioxidants could begin to reduce those risks," said CSPI Executive Director Michael F. Jacobson. "Adding an antioxidant to a soda is like adding menthol to a cigarette -- neither does anything to make an unhealthy product healthy."

This isn't the first time the labeling practices have attracted the attention of consumer advocacy groups. Here's the low down on the 7UP sodas and seven other popular foods whose health claims have been called into question.

Juiced Up Claims

7UP Cherry
Despite pictures of wholesome fruit dancing across the label, the new line of 7UP antioxident sodas contains no fruit, accoding to its maker. True, they do contain a small amount of vitamin E. But any purported health benefits of antioxidants are suggested by studies involving the consumption of whole fruits and vegetables -- not guzzling artificially fortified fizzy drinks.

It's not as if the sodas are packed with other healthful ingredients either. The 7UP Cherry Antioxidant flavor, for example, lists water, high-fructose corn syrup, citric acid, potassium benzoateand the controversial dye Red 40 on its label. A 12-ounce serving contains 9 teaspoons (38 grams) of sugars and 140 calories. And diet versions contain the artificial sweeteners aspartame and acesulfame potassium.

CSPI litigation director Steve Gardner said he's looking forward "to having 7UP go under oath and testify before a judge or a jury that this disease-promoting sugar water is actually a source of healthy antioxidants."

A spokesman for Dr Pepper Snapple Group said the soda "is properly labeled under all FDA regulations so that consumers can make an informed choice." But the company said it already had plans to reformulate and relabel the soda by February 2013.

"The new Cherry 7UP will not contain antioxidants to be consistent with the formulation and appearance of other 7UP products," spokesman Chris Barnes said in a statement.

Juiced Up Claims

Coconut Water
While different brands of coconut water welcome consumers with their tropical packaging, experts say there is very little research to prove that there is anything particularly magical about the drink.

"It is high in protein, doesn't have a lot of taste and does not contain a huge amount of ... plant nutrients," said Leslie Bonci, director of sports nutrition at University of Pittsburgh Medical Center. "Unlike most juices, which are low in sodium, coconut water has 252 mg per 8 ounce serving. Coconut water does contain phytohormones, which have antioxidant and anti-platelet properties, so there may be health benefits, but it is very expensive."


"Coconut water is low in calories," said Keith Ayoob, associate professor of pediatrics at Albert Einstein College of Medicine in New York. "That's a real plus, because it's very easy to overconsume beverage calories."

Juiced Up Claims

Acai Berry
In 2009, this dark purple fruit blew up in popularity after Dr. Oz highlighted the lovable berry on "Oprah" as one of the secrets on her "mac daddy" anti-aging checklist. Oz told the crowd that acai berries contain twice the antioxidant content as in blueberries. Several juice companies market the fruit as one that helps prevent heart disease, cancer, aging, and encourages weight loss, just for starters.

But in 2009, the Center for Science and Public Interest warned consumers that there is no evidence that the Brazilian berry helps anyone shed pounds, and discouraged people from enrolling in the online, supposedly free, clinical trials for the product that were popping up on Internet ads and email listserves.

"I do think people hear the words tropical rain forest, and assume this is better than what they can find in the grocery store," said Bonci. "Yes, acai does contain antioxidants and phytonutrients, and also contains polyunsaturated fats and fiber, as well as anthocyanins. However, the anthocyanin content of grapes or blueberries is higher, and these fruits are less pricey."

Juiced Up Claims

Mangosteen
While not as popular as the acai berry, mangosteens are enjoying popularity as a fruit-turned-juice, for which companies tout benefit claims of anti-fatigue, anti-obesity and anti-depression. The mangosteens come from tropical evergreen trees in the Pacific and contain a high concentration of antioxidants.

"Mangosteens are high in polyphenols, a type of antioxidant, and so they have anti-inflammatory properties, but so do more common berries," said Ayoob.

Bonci agreed, noting that it is also high in xanthones, another type of antioxidant.

"[There] may be some application with regards to inflammation, insulin resistance, cancer prevention or slowing cancer progression, and immune system boosting, but there are not a lot of studies, and like the other juices, said Bonci. "This is still very costly."

Juiced Up Claims

Pomegranate
Similar to the acai's popularity, the pomegranate has gained ground as a superfood high in antioxidants. "Preliminary evidence indicated some health benefits from pomegranate juice, but as research has evolved, the evidence does not support it being any better than any other darkly colored, strongly flavored fruit or vegetable," said Diekman.

While the pomegranate is an excellent source of antioxidants, like many of the other fruits mentioned, it carries another heavy price tag.

"The price of pomegranate juice is double what grape juice is, and the health benefit is similar," said Bonci.

Juiced Up Claims

Goji Berries
This little red fruit, also known as a Chinese wolfberry, looks similar to a cherry tomato. Native to southeastern Europe and Asia, many marketers of goji berry supplements and juice claim the fruit can stave off diabetes, high blood pressure and age-related eye problems.



"They cost about $30 for an 18 ounce bag and, although they may have health benefits, the [cost] may outweigh the health value," said Bonci. "Also, some goji juices contain tiny amounts of goji berries and lots of sugar, so what you think you are getting, you may not be."

Juiced Up Claims

Noni
The noni fruit, not nearly as popular as its other superfood counterparts, is native to Southeast Asia and Australasia. It is marketed as a juice that supports the immune system and heart health and increases energy.

Bonci noted that the noni fruit contains high amounts of vitamin C and potassium. But so high "that it may be problematic for those with kidney disease." She even noted that a study published in the Canadian Journal of Herbalism suggested that noni may be a highly addictive narcotic painkiller.

"These are [all] good nutrient sources, but none of them can compensate for a diet that isn't good overall," said Dr. David Katz, director of the Yale Prevention Center. "There is no evidence of health benefit linked specifically to the intake of any of these."

Juiced Up Claims

Wheatgrass
Wheatgrass, often consumed as "shots" in smoothies and healthy shakes, comes from the common wheat plant known as Triticum aestivum. The food contains B vitamins, beta-carotene, vitamin C and potassium. Marketers claim that consistent consumption of the product cleanses the body and slows the aging process.

It's certainly a healthy food, "but you would need to consume a lot of wheat grass to equal what you might get in a spinach salad," said Bonci.

"These juices, and the many more that will flood the market in the future, can fit into a healthful eating plan as long as they are not over-consumed ... and that they are a part of an eating plan that focuses on more fruits, vegetable, whole grains and lean meat and low-fat dairy," said Diekman.

With that said, Diekman encourages people to eat whole fruits instead of the juice and supplement alternative when experts do not fully understand their overall health benefits.

"It's hard to resist the lure of the silver bullet," said Katz. "We probably all really know that good health requires a real commitment of eating well [and] being active. ... Marketers know we want this kind of magic, and so they do a very good job of suggesting their product provides it."

 
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