medical news

Hot exercise classes catching on like fire

Mimi Benz discovered her fervor for hot exercise by accident. She had taken heated yoga classes but had never thought to combine high temperatures with her true passion, indoor cycling, until the air conditioning broke during a cycling class at her gym.

From that first hot ride, she was hooked.

“I loved it,” says Benz, explaining that with a heated workout she didn’t have to waste time warming up. “It improves blood flow throughout your body, so you go into a high-calorie burn more quickly. And it feels really good afterwards.”

In 2011, Benz opened the Sweat Shoppe, a heated indoor cycling studio in North Hollywood.

“I wasn’t sure how people would respond, so in the beginning we had half heated classes and half non-heated classes.” But the demand for heated classes was so high that by 2013 they’d eliminated non-heated rides from the schedule.

As the demand for hot workouts continues to rise, heated studios are popping up all over, offering everything from traditional Bikram yoga, which started the hot exercise trend with a regimented sequence of yoga postures performed in a 105-degree room with 40% humidity, to hot power yoga, hot Pilates and hot barre. Some classes even incorporate hot weightlifting.

Bikram’s static poses can be sustained at over 100 degrees, but more dynamic classes are typically in the 95-degree range, and the Sweat Shoppe’s SweatCycle classes top out at 85 degrees. “If you go hotter, that’s nuts” and not safe, says Benz.

The allure of heat

As for why people love the heat so much, Benz says it’s partly a psychological response to sweat streaming from your pores. “People feel they’ve accomplished more if they’re drenched. It is very addictive; a lot of our clients can’t cycle anywhere else because they’re so used to riding in a heated environment.”

Laurel Hilton, a writer and hot-yoga enthusiast from Mill Valley, Calif., agrees that once you go hot it’s hard to go back. “I’m addicted to sweating. In the heat you get a sort of exhausted euphoria. You almost feel like you’re floating during practice. Without heat, it’s just not the same experience.”

After becoming acclimated to high temperatures, working out in the heat gets easier. “It’s the same thing any football coach knows,” says Craig Crandall, director of the Thermoregulation Laboratory at the University of Texas Southwestern Medical Center at Dallas. “When you take [players] out in the beginning of the season, you can’t work them out hard. They’ll die.” But give them a chance to acclimate, and they’ll be able to push themselves.

Another reason people are attracted to heated workouts: If a heat-acclimated person does the usual workout in a cool environment, it will be a breeze in comparison, says Benz.

Does heat make a better workout?

Though many heated exercise champions believe they’re burning more calories because their hearts are beating faster, that’s not true, says Crandall. “It’s oxygen uptake that determines the number of calories burned, not heart rate.” When people exercise in the heat, they lose blood volume as they sweat, so the amount of blood ejected per heart beat decreases. To compensate, the heart rate increases. For a given workload, a person’s heart rate will always be higher in the heat.

“We know exercising in heat will cause a slightly higher oxygen uptake, but [the difference is] very small, less than 10%,” and likely to be offset by a decreased workload, Crandall says.

Another common misconception is that sweating profusely “detoxifies” the body. “That’s silliness,” says Crandall. “I don’t know of any toxins that are released through sweat.” He adds that the function of sweating is to cool you down, not clean you out.

So is there any physiological benefit to working out in the heat? Crandall says the benefit is heat acclimation itself, which improves sweating efficiency, increases blood flow to the skin and expands blood volume, bringing more blood to the muscles.

There is some evidence that heat acclimation can boost athletic performance. A 2010 study looking at elite cyclists found that those who added a 10-day heat training regimen to their normal training routine saw a 7% increase in their performance. The performance-boosting effects lasted one to two weeks after heat exposure.

But Santiago Lorenzo, the study’s lead author, former Olympic decathlete and a professor of physiology at Lake Erie College of Osteopathic Medicine in Erie, Pa., cautions, “The results we saw apply to highly trained cyclists. How to translate this to someone of average fitness or a weekend warrior? Chances are it would still work—but we need studies to confirm that.”

Safety during heated exercise

“Even if you’re running in the desert or an area with high humidity, you still usually have a draft to cool you off,” says Shannan Lynch, director of education for Mad Dogg Athletics Inc. “But when you sit in a heated room without airflow, the temperature can get dangerously hot.”

The conditions can lead to reduced blood flow to your skin, thus less cooling, and eventual heat exhaustion or even heat stroke. Warning signs include a dry mouth, headache, increasing fatigue, nausea and dizziness.

If you exercise in the heat, Lynch says, replace the fluid that you lose. Weigh yourself before and after. American College of Sports Medicine guidelines recommend that people drink 20 to 24 ounces of water or sports beverage for every pound they lose.

As far as contraindications for heated exercise, “If you have any kind of heart condition, only try it after you get the green light from a physician,” Lynch says, adding. “Pregnant women should not be exercising in a heated environment.”

Source: http://www.latimes.com/health/la-he-sweat-it-20130914,0,522826.story

Questioning Steroid Shots for Back Pain

Injecting steroids into the area around the spinal cord, known as an epidural, is the most commonly used treatment for back pain, but a new review of studies suggests that injecting any liquid, even plain saline solution, works just as well.

Researchers pooled the results of 43 studies involving more than 3,600 patients who got various kinds of injections for back pain. As they expected, they found some evidence that epidural steroid injections provided more relief than steroid injections into the muscles.

But the study, published online in Anesthesiology, also found that there was little difference between the amount of relief provided by steroidal and non-steroidal epidural injections.

The researchers suggest that any liquid injected epidural can help reduce inflammation, enhance blood flow to the nerves and clean out scar tissue.

“Epidural steroid injections may provide modest relief for up to two months in people with back pain due to nerve inflammation,” said the senior author of the study, Dr. Steven P. Cohen, a professor of anesthesiology at Johns Hopkins.

But steroids have side effects, and “most of the short-term benefit seems to be not from the steroids, but from the local anesthetic and saline, which may ‘calm’ inflamed nerves that send pain signals,” said Dr. Cohen. “Doctors should consider significantly reducing the steroid dose, or even not using steroids in patients who are at high risk.”

Source: nytimes.com

Global Warming Slowdown Hinders Climate Treaty Effort

More than ever, scientists say they’re convinced the Earth’s climate is warming. Yet lawmakers are struggling to do anything about it because the pace of change has unexpectedly slowed.

The data has caused a United Nations panel to lower predictions of the pace of global temperature increases by 2100, according to draft documents obtained by Bloomberg ahead of publication due on Sept. 27. Still, the most complete assessment of climate science in six years also is likely to conclude that melting ice will make sea levels rise faster than previously projected.

The findings muddy the picture about how much carbon dioxide output is affecting the climate, giving ammunition to those who doubt the issue needs urgent action. Skeptics have succeeded in “confusing the public,” said Michael Jacobs, who advised the U.K. government on climate policy until 2010.

“It’s been a very organized campaign by climate skeptics, using the very, very tiny number of scientists who don’t agree with the almost unanimous view of everybody else and inflating small uncertainties into apparently major challenges to the scientific consensus,” Jacobs said. “One of the challenges of the panel this year is to convince the media, politicians and the public that there is this extraordinarily widespread consensus on the major facts about climate change.”

Source: http://www.bloomberg.com

5 surprising ways to prevent migraines

When it comes to migraines, the best offense is a good defense. If are suffering from a migraine, you are probably more than willing to try any migraine medication or unusual home remedy in the hope of getting some sort of migraine relief. Many migraine sufferers find that it is easier and more effective to prevent a migraine from happening in the first place than trying to treat the pain and nausea of a full blown migraine headache once it occurs. The best treatment for migraine relief is migraine prevention.

The problem with finding a definitive migraine medication or preventative treatment for migraines is that all migraine sufferers are unique and have different migraine triggers and causes. For example, the treatments for migraine prevention that keep me from having a migraine for months and even years at a time have not, unfortunately, worked for my sister.

If you suffer from migraines, the key is to keep trying until you find a treatment for migraine prevention that works for you.

 1: Lifestyle changes are the best treatment for migraine prevention.

The most important strategy in the war against migraines is avoiding a migraine attack in the first place. To prevent migraines, you need to figure out what your own personal migraine triggers are and avoid them religiously.

Common migraine triggers include chocolate, red wine, cheese and caffeine. Keep a diet diary to discover your migraine triggers. Avoiding migraine triggers in your diet is an effective treatment for migraine prevention.

Certain smells can also trigger a migraine headache. My sister, for example, stopped wearing perfume and asked her friends and family to do the same when they planned to spend time with her. That helped a little, but it was not enough.

However, when she stopped buying any type of scented soaps, shampoo, lotion, laundry detergent and other cleaning products and got rid of her flowering houseplants, it made an even bigger difference. You may not think of the original scent of Tide, for example, as being perfumed, but it is. Being around those low level smells meant that my sister was exposed to one of her migraine triggers all the time; for her, buying unscented everything is an effective treatment for migraine prevention.

 2: Natural herbal remedies for migraine prevention.

For centuries, migraine sufferers have been using natural herbal remedies to prevent and treat migraine headaches. If you suffer from migraines, you might want to try traditional herbal remedies to prevent migraines.

Natural herbal remedies such as feverfew and ginko biloba that increase blood circulation and decrease the constriction of blood vessels, especially in the brain, are good herbal treatments for migraine prevention. In fact, daily doses of feverfew has been shown in British medical studies to reduce not only the frequency of migraine attacks, but also the intensity of migraine headaches when they do occur, especially when taken in conjunction with white willow.

Ginger, a natural powerhouse and home remedy staple, is well known for preventing and reducing the nausea that all too often accompanies a migraine headache. Ginger can also be used as a treatment for migraine prevention.

 3: Vitamin supplements can be used to prevent migraine headaches.

You might also want to consider taking over the counter vitamins and supplements from preventative migraine relief. Coenzyme Q10, magnesium and vitamin B2 have all been shown to be helpful treatments for migraine prevention.

 4: OTC Migraine medications can help stave off a full blown migraine attack.

If, despite your best efforts, you do feel a migraine headache coming on, your best strategy is to stop it in its tracks.

Excedrin Migraine is a popular over the counter (OTC) migraine medication. It contains acetominphen, aspirin and caffeine, and many migraine sufferers have found that Excedrin Migraine works when taken at the first sign of a migraine. However, if caffeine is one of your migraine triggers, Excedrin Migraine not the migraine medication for you.

I personally find OTC naproxen (ie. Aleve) be effective if taken immediately, as well as over the counter sinus medications that combine pain relief with antihistamines and decongestants.

Finally, many migraine sufferers, men included, have found that OTC medications designed for menstrual problems are also effective for migraine relief.

 5: Prescription medications for migraine prevention.

If you have tried the typical lifestyle changes, herbal migraine prevention medications and over the counter migraine drugs listed above, you may need to talk to your doctor about at migraine relief from prescription migraine prevention medications.

Currently, there are only four migraine medications approved by the FDA for use in preventing migraine headaches. Two- Topamax (topiramate) and Depakote ER (divalproex sodium)- are neuronal stabilizing agents, or anticonvulsants originally developed for seizure disorders. The other prescription medications approved for migraine prevention are Blocadren (timolol) and Inderal (propranolol), which are beta blockers originally developed for treating heart disease and high blood pressure

These migraine medications provided relief from migraines to many sufferers, but they can have side effects. Topomax, for example, has been shown to cause birth defects, kidney stones, acute myopia (nearesightedness) and glaucoma, which can lead to blindness.

Doctors may prescribe certain medications off label for preventative migraine relief. “Off label” means prescribing a medication approved for something else for the treatment of migraines. Antihistimines, antidepressants and blood pressure medications have all been prescribed by doctors in the hope that they will prevent migraines.

Other brands of beta blockers and anticonvulsants that have not specifically been approved by the FDA for migraine prevention have been successful when used as preventive migraine medications, as well as Botox, muscle relaxants, nonsteroidal anti-inflammatory drugs (NSAIDs) generally prescribed for arthritis, and medications usually used in the treatment of ADD.

As always, you should make sure to talk to your doctor before using prescription medications as a treatment for migraine prevention.

Source: health.com

Vitamin B could help reduce risk of stroke

Taking Vitamin B supplements may help to reduce the risk of stroke, according to a new study.

Researchers found that across 14 studies taking vitamin B reduced the risk of having a stroke by around seven per cent.

Vitamin B, which actually consists of a group of 8 vitamins, are generally found in fortified cereals along with meat such as tuna, liver and fruit such as bananas.

Processed foods such as bread, however, tend to contain low levels of B vitamins and so many health experts encourage taking supplements.

Previous studies have revealed conflicting findings for whether vitamin B supplements can help guard against stroke or heart attack. Some have even shown it can increase the risk.

However, researchers at Zhengzhou University in China analyzed 14 clinical trials, involving nearly 55,000 participants.

They found there was a seven per cent lower risk of stroke among those taking the supplements.

There were 2,471 patients suffered strokes but the studies also showed vitamin B resulted in lower levels of a molecule involved in blood clotting called homocysteine.

The authors, whose findings are published in the journal Neurology, said: “Our analysis demonstrated that homocysteine lowering therapy with B vitamin supplementation significantly reduced stroke events.”

However, the researchers found vitamin B supplementation did not have a significant impact on reducing the risk of heart attack.

They also found that folic acid, which is also known as Vitamin B9, could reduce the benefits of taking other vitamin B supplements.

However, many health experts have been pushing to have folic acid added to bread to help ensure pregnant women get enough of the nutrient as it can protect against neurological diseases such as spina bifida in their children.

The researchers also found vitamin B12, which is a common supplement, did not appear to have any impact on stroke risk at high doses.

Previous studies have shown that vitamin B3 can help to improve recovery in patients who have suffered a stroke.

Dr Xu Yuming, another of the authors behind the study, said: “Based on our results, the ability of vitamin B to reduce stroke risk may be influenced by a number of other factors such as the body’s absorption rate, the amount of folic acid or vitamin B12 concentration in the blood, and whether a person has kidney disease or high blood pressure.

“Previous studies have conflicting findings regarding the use of vitamin B supplements and stroke or heart attack.

“Some studies have even suggested that the supplements may increase the risk of these events.”

“Before you begin taking any supplements, you should always talk to your doctor.”

Source: telegraph.co.uk

Beat insomnia with yoga, Ease Stress, and Relieve Pain

If you’ve already tried everything from a warm bath to a warm glass of milk but you’re STILL lying awake counting sheep, wellness expert Peggy Hall has another tip that could help you get a good night’s sleep.

The next time you find yourself lying awake at night, grab your yoga mat: , relieve stress, and ward off aches and pains that can keep you tossing and turning. Closing your eyes and breathing long, slow breaths can have a sedating effect on the body, says Sara Ivanhoe, featured instructor on VH1’s Celebrity Rehab. “I’ve had trouble sleeping since I was an infant,” she says. “One of the reasons I got into yoga is because I wanted to learn to relax on command.”
“As a yoga instructor, I’ve developed two easy and effective yoga moves that anyone can do,” says Peggy. “Whether you’re a yoga pro or have never done yoga before!”

The first move she recommends is what she calls “Sleeping Beauty”:

  • Sit on the bed and place two pillows or a folded blanket to your left side.
    Bend your knees toward the pillows and let your feet go to your right.
    Place your chest and side of your head on the blanket. Close your eyes
    and relax for five to eight breaths. Repeat on the other side.
  • Why this works: According to the traditions of yoga, when you lie on your
    back, your brain tends to stay more alert, so it’s not conducive to falling
    asleep. But when you’re face down or curled up, your brain senses a
    drawing in and a calming down. If you like to sleep on your back,
    that’s fine — just start out on your side until you get drowsy, then you
    can turn over.

Peggy’s second move is the “Whole Body Blast”:

  • Lie on your bed, face up.
  • Tense your whole body, making fists, and clench every muscle tight. Hold this position and hold your breath for a few seconds, then release everything. Repeat a total of three times. Peggy says that this helps squeeze out the last remaining bits of physical and emotional tension that can lead to insomnia.

“You’re going to feel such a sense of relief after doing these simple moves,” says Peggy, “that your body is naturally going to enter the sleep zone so you can wake up refreshed and ready to take on the day!”

Source: Americanownews.com

Single cup of tea `boosts the brain

A new study has claimed that the nutrients found in a cup of tea can boost your brain power and increase alertness.

For the research, Dutch scientists studied the brain activity in 44 young volunteers to analyze the effect of key chemicals, an amino acid called L-theanine, and caffeine at levels typically found in a cup of tea, News.com.au reported.

The natural ingredients radically enhanced accuracy across a number of switching tasks for those who drank the tea after 20 and 70 minutes, compared with those who didn’t.

The study also found that tea drinkers’ had heightened alertness and were less tired as compared to their non tea-drinker counterparts.

Researchers added that the results of the study suggest that the combination helps to focus attention during a demanding cognitive task.

The study was published in the journal Nutritional Neuroscience
Read more: http://www.indiavision.com

 

Cure for lifestyle-related diseases comes closer to reality

A new research suggests that changing your lifestyle could actually help your body’s metabolism, which could help fight against major diseases.

The study has found that an unhealthy lifestyle leaves traces in the DNA, which may have specific effects on metabolism, causing organ damage or disease.

Scientists of Helmholtz Zentrum Munchen have now identified 28 DNA alterations associated with metabolic traits in the world-first epigenome-wide association study (EWAS) of modified genes and metabolites.

In the course of life, aging processes, environmental influences and lifestyle factors such as smoking or diet induce biochemical alterations to the DNA.

Frequently, these lead to DNA methylation, a process in which methyl groups are added to particular DNA segments, without changing the DNA sequence.

Such processes can influence gene function and are known as epigenetics.

Scientists of the Institute of Genetic Epidemiology (IGE) and the Research Unit Molecular Epidemiology (AME) at Helmholtz Zentrum Munchen are seeking to determine what association exists between these epigenetic processes and the health consequences, in particular for the metabolism.

To this end, the team led by Christian Gieger (IGE) and Melanie Waldenberger (AME), in collaboration with Karsten Suhre of Weill Cornell Medical College in Qatar analyzed blood samples from more than 1800 participants of the KORA study.

In doing so, they analyzed more than 457,000 loci in the DNA as to biochemical alterations and compared them with the concentrations of 649 different metabolites.

The analysis showed that the methylation of 28 DNA segments changed a number of important metabolic processes.

“This study gives us new insights into how lifestyle factors can influence metabolism via the resulting alterations in the DNA,” Gieger, research group leader at the IGE, said.

“We can now use these results to develop new diagnostic and therapeutic approaches for lifestyle-related diseases such as diabetes,” he said

The research is published in the journal Human Molecular Genetics.

Source: ANINews

 

Smoking during pregnancy can lead to asthma in grand kids

Researchers have discovered that smoking can have a lasting legacy, and one well-established risk factor for asthma is having a mother who smoked during her pregnancy.

When animal mothers are exposed to nicotine during pregnancy-a proxy for smoking-their grandchildren were also at an increased risk of asthma, even though they were never exposed to nicotine themselves.

Wondering if this dangerous heritage might extend even farther down the family line, Virender K. Rehan and his colleagues at Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center (LA BioMed) exposed pregnant rats to nicotine.

They then tested an additional generation-the mothers’ great-grand-rats-for signs of asthma .

Their results suggest that this group of rats is also at an increased risk of this condition, bearing the brunt of nicotine exposure three generations in the past.

The study is published in the American Journal of Physiology-Lung Cellular and Molecular Physiology, published by the American Physiological Society.

Source: Zee News

How to Cope with Generalized Anxiety Disorder

One of the most important parts of having generalized anxiety disorder (GAD) is learning how to cope with the persistent anxiety and some of the physical symptoms. This page can serve as a guide to coping with anxiety that will be frequently updated with new articles and information based on practical tips that work to cutting-edge research findings.

Understanding GAD

It is crucial to understand the elements of GAD as completely as possible to be able to cope with it effectively. The following articles are a good way to begin or increase your depth of understanding of GAD:

Generalized Anxiety Disorder or GAD basically means feeling tense and anxious much of the time over things that wouldn’t normally bother you – or not so much, anyway (1). Feeling like this every day can quickly suck a sense of meaning from life. Every day feels like survival.

This can happen because structurally, the brain and body of the ‘you 20,000 years ago’ are no different from today (okay, the ‘you’ back then may have been a little more buff…). My point here is that the natural responses that kept us alert and alive back then still work within us.

So what hunts you now?

Modern life has replaced ancient wolves with relationships gone bad, financial worries, unresolved traumas, bad bosses, fears of not fulfilling expectations adequately, bad diet, and excessive consumption of stimulants. Unless we learn to fend off and master the inner ‘wolves’ as we did the outer ones, we’ll fall prey to all the fear and anxiety reactions we evolved to feel.

It’s strange that this most ancient of responses is seen as pathological or even as a medical condition or ‘disease’.

People with GAD commonly report:

  • Feeling by turns restless and agitated, but also exhausted and unable to cope.
  • Unable to ‘switch off’ and relax.
  • Always being ‘on high alert’.
  • Difficulty sleeping.
  • Difficulty eating, digestive problems.
  • Other physical symptoms of stress such as raised blood pressure, palpitations, sweating, rapid shallow breathing.
  • Anxiety about everyday routines and circumstances, health worries, finances.
  • Worries seem to be out of proportion, meaning other people may be at a loss to understand just what is bothering you.
  • Worry seems to switch from one thing to another.

All of the above would fit the condition of a primitive person negotiating the savageries of pre-civilization. All of the above are natural adaptations we evolved to experience.

Experiencing GAD can be likened to driving a car in top gear in a 10 MPH speed limit zone. Adaptations need to be made so that you don’t waste ‘fuel’ in your daily life.

If you have been diagnosed with Generalized Anxiety Disorder, then try the following:

1) Remember it’s normal

Remind yourself that whatever scary GAD symptoms you’ve been experiencing are all part of the normal range of what we’re all supposed to feel sometimes. Forget the clinical formality of psychiatric diagnoses. Basically, you have been feeling like a pack of wolves has been on your trail. This is normal after a build-up of stress; you are normal.

2) Think about what stresses you and seek to minimize it

One wolf might be scary, but many together can be terrifying. Lots of little life stresses build up into a pretty intimidating pack of stresses. Ask yourself: when did this GAD start? What was happening in your life at the time? Was there more stress than usual? Even a few nights of poor sleep can be enough to make some people feel very anxious.

  • Have you been worrying about something in particular?
  • Is your diet full of stimulants such as sugar and caffeine?
  • Have you learnt how to relax the mind and body?

Remember you are safe

The level of anxiety, trepidation, and foreboding so often seen in people suffering Generalized Anxiety Disorder is appropriate, even useful, in ongoing physically dangerous circumstances. If you are not physically safe in your life right now, then you need to take immediate steps to ensure you are.

But as I’ve said, we all still respond to modern threats as if they were ancient physical ones. You need to remind yourself that, luckily, you’re not being pursued by threatening wolves bent on eating you. Next time you respond physically (nerves in stomach, rapid breathing, and increased pulse rate) when there is no physical threat, remind yourself:

Don’t worry about worry

One commonly reported symptom of GAD is worry about stuff that shouldn’t really be worrying at all. This happens because when you have strong feelings, your mind will seek ways to try to justify that emotion. It’s as if your mind has to make a container for the feelings – something to worry about.

Sound strange? Well, consider this: If you’re already, say, seething with anger about something, you can go out in the street still feeling angry and find yourself angry about the way strangers look, the little slow elderly woman taking too much time in front of you in line, the way someone speaks to you…anything. This will happen until you calm down again, at which point the things you were using to justify those angry feelings will no longer be bothersome.

Generalized Anxiety Disorder drives us to find stuff to feel worried about. It’s important you remember this so you can start to put worries into their true perspective.

Deal with the physical symptoms of fear

When you feel physically safe and calm, you breathe nice and evenly, your blood pressure normalizes, and your immune system works better. The more relaxed you feel, the more ‘normal’ other physical processes like sleep and digestion become. Insomnia was supposed to happen when we were being tracked by wolves. When your body and mind start to feel safe again, then restful sleep can return.

When you relax, you also find it easier to think clearly; anxiety has a way of clouding the brain. Relaxation also improves your mood, including your optimism and level of self-confidence. Suddenly, the wolves have gone or you have mastered them. This is very different from the constant worry and foreboding of Generalized Anxiety Disorder.

Source:  http://www.uncommonhelp.me/