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Exercising for Weight Loss (Sex Health Guru)

Exercising for Weight Loss (Sex Health Guru)

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Physical exercise is any bodily activity that enhances or maintains physical fitness and overall health. It is performed for many different reasons. These include strengthening muscles and the cardiovascular system, honing athletic skills, weight loss or maintenance and for enjoyment. Frequent and regular physical exercise boosts the immune system, and helps prevent the “diseases of affluence” such as heart disease, cardiovascular disease, Type 2 diabetes and obesity. It also improves mental health and helps prevent depression. Childhood obesity is a growing global concern and physical exercise may help decrease the effects of childhood obesity in developed countries.

Types of exercise

Exercises are generally grouped into three types depending on the overall effect they have on the human body:

Flexibility exercises, such as stretching, improve the range of motion of muscles and joints.

Aerobic exercises, such as cycling, swimming, walking, rowing, running, hiking or playing tennis, focus on increasing cardiovascular endurance.

Anaerobic exercises, such as weight training, functional training or sprinting, increase short-term muscle strength.

Categories of physical exercise

Aerobic exercise

Anaerobic exercise

Strength training

Agility training

Sometimes the terms ‘dynamic’ and ‘static’ are used. ‘Dynamic’ exercises such as steady running, tend to produce a lowering of the diastolic blood pressure during exercise, due to the improved blood flow. Conversely, static exercise (such as weight-lifting) can cause the systolic pressure to rise significantly (during the exercise).

Exercise benefits

thumb|right|200px|A common [[elliptical trainer|elliptical training machine.]] Physical exercise is important for maintaining physical fitness and can contribute positively to maintaining a healthy weight, building and maintaining healthy bone density, muscle strength, and joint mobility, promoting physiological well-being, reducing surgical risks, and strengthening the immune system.

Exercise also reduces levels of cortisol, thereby benefiting health. Cortisol is a stress hormone that builds fat in the abdominal region, making weight loss difficult. Cortisol causes many health problems, both physical and mental.

Frequent and regular aerobic exercise has been shown to help prevent or treat serious and life-threatening chronic conditions such as high blood pressure, obesity, heart disease, Type 2 diabetes, insomnia, and depression. Strength training appears to have continuous energy-burning effects that persist for about 24 hours after the training, though they do not offer the same cardiovascular benefits as aerobic exercises do.

Effect on the immune system

Although there have been hundreds of studies on exercise and the immune system, there is little direct evidence on its connection to illness. Epidemiological evidence suggests that moderate exercise appears to have a beneficial effect on the human immune system while extreme exercise appears to impair it, an effect which is modeled in a J curve. Moderate exercise has been associated with a 29% decreased incidence of upper respiratory tract infections (URTI), but studies of marathon runners found that their prolonged high-intensity exercise was associated with an increased risk of an infection, although another study did not find the effect. Immune cell functions are impaired following acute sessions of prolonged, high-intensity exercise, and some studies have found that athletes are at a higher risk for infections. The immune systems of athletes anf nonathletes are generally similar. Athletes may have slightly elevated NK cell count and cytolytic action, but these are unlikely to be clinically significant.

Supplementation with the antioxidants vitamin C and E has been found to decrease the release of interleukin-6 (IL-6), which would be expected to decrease the depression of the immune system. Further, vitamin C supplementation has been associated with lower URTIs in marathon runners. However, the decreased release of IL-6 limits the anti-inflammatory effect of exercse and could limit the positive adaptation effects of exercise.

Biomarkers of inflammation such as C-reactive protein, which are associated with chronic diseases, are reduced in active individuals relative to sedentary individuals, and the positive effects of exercise may be due to its anti-inflammatory effects. The depression in the immune system following acute bouts of exercise may be one of the mechanisms for this anti-inflammatory effect.

Breathing

Active exhalation during physical exercise helps the body to increase its maximum lung capacity. This results in greater efficiency, since the heart has to do less work to oxygenate the muscles, and there is also increased muscular efficiency through greater blood flow. Consciously breathing deeply during aerobic exercise helps this development of the heart and lungs.

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Vaccine raises hope for cocaine addiction therapy

July 3, 2012Uncategorizedaddiction therapy, and, archives of general psychiatry, aVaccine raises, aVaccine raises Asia, aVaccine raises Health History, aVaccine raises Gallery, aVaccine raises Photo Gallery, aVaccine raises for Weight gallery, aVaccine raises Health information, aVaccine raises Health Latest, aVaccine raises Health Photo, aVaccine raises Picture, aVaccine raises Video, aVaccine raises Web, aVaccine raisesfor Weight Health photo, aVaccine raisesHealth, aVaccine raisesHealth Information, aVaccine raisesHealth Latest, aVaccine raisesover Picture, aVaccine raisesvideo, baylor college of medicine, baylor college of medicine in houston, baylor college of medicine in houston texas, beating, bf1, blister, bloodstream, body, calories, Cancer, cholera toxin, cholinesterase, Choreography for Weight Health Story, cocaine addiction, cocaine antibodies, cocaine users, college of medicine, crack cocaine, diet, dr thomas, Drug, eating, Exercise, five shots, Flu, for, gallery, Gym, Health Health, health video, healthcare system, history, immune, immune system, in, is, laparoscopy, Malaysia Health, medical, methadone, million, molecules, new approach, Nutrition, of, on, operation, organic, photo, physical, researchers, skin, spiritual, study, Surgery, symptoms, thomas kosten, tips, to, training, treatment, vaccine, veterans affairs, video, video photo, video surgery, virus, web, web Health, web Health picture, weight health, weightlossazuan

Vaccine raises hope for cocaine addiction therapy

A vaccine helped block the high felt by cocaine users in 38 percent of people who took it, U.S. researchers said on Monday, offering promise of a new approach to treating those addicted to the drug.

The aim is to prevent cocaine’s rewarding effects — the high — in order to reduce cravings that trigger drug relapses.

“The concept works,” Dr. Thomas Kosten of Baylor College of Medicine in Houston, Texas, whose study appears in the Archives of General Psychiatry, said in a statement.

Cocaine molecules on their own are too small to draw the attention of the immune system. To get the body to recognize cocaine, the researchers designed a vaccine that uses a harmless version of the cholera toxin with a few attached cocaine molecules.

When the immune system reacts to the toxin, it makes both cholera and cocaine antibodies.

“These antibodies bind to the cocaine, preventing it from leaving the bloodstream,” Kosten said. An enzyme called cholinesterase breaks down the cocaine and flushes it out of the body.

For the study, Kosten and colleagues studied 94 volunteers — mostly users of crack cocaine, which is a solid, smokable form of the drug — who were on methadone treatment at the Veterans Affairs Connecticut Healthcare System.

Over three months, the participants either got five shots of the vaccine or a placebo injection.

STUDY PLANS

Plans are under way to study the vaccine in many sites.

According to a 2007 National Survey on Drug Use and Health, 35.9 million Americans aged 12 and older reported having used cocaine, and 8.6 million reported having used crack. In 2006, cocaine accounted for about 14 percent of all admissions to drug abuse treatment programs.

Kosten said he plans to tinker with the vaccine to make it more effective. He has already tried a different carrier — a modified version of a meningitis bacterium — supplied by drug firm Merck & Co.

Animal studies showed it produced five times the antibody response as the cholera carrier.

He has used a similar approach on a nicotine vaccine called TA-NIC now being tested in Europe. Both the cocaine and nicotine vaccines are being developed through private equity firm Celtic Pharma.

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Early daycare may not lower asthma risk

June 26, 2012Uncategorizedallergic conditions, american journal of respiratory and critical care, american journal of respiratory and critical care medicine, and, asthma, beating, bf1, blister, breathing difficulties, calories, Cancer, childhood allergies, children, critical care medicine, daycare, diet, Drug, Early, Early daycare, Early daycare Asia, Early daycare Gallery, Early daycare Health, Early daycare Health History, Early daycare Health Information, Early daycare Health Latest, Early daycare Photo Gallery, Early daycare Picture, Early daycare Video, Early daycare Web, Early daycare Health Photo, Early daycare over Picture, eating, erasmus university, Exercise, Exercising for Weight Gallery, Exercising for Weight Health Story, Exercising for Weight Health Photo, Flu, gallery, germ, Gym, Health Health, health video, Healthy Minnesota, Healthy Minnesota Asia, Healthy Minnesota Health Story, Healthy Minnesota Photo Gallery, history, hygiene hypothesis, immune system, in, investigators, johan, laparoscopy, life, lower, Malaysia Health, may, medical, not, Nutrition, of, operation, or, organic, peers, photo, physical, researcher, researchers, respiratory and critical care medicine, respiratory health, reuters health, risk, rotterdam, siblings, skin, spiritual, study, Surgery, symptoms, tips, to, training, video, video photo, video surgery, virus, web Health, web Health picture, weightlossazuan

Early daycare may not lower asthma risk

Contrary to what some previous studies have suggested, children who enter daycare at an early age may not have a reduced risk of allergies and asthma later on, researchers reported Tuesday.

In a study of more than 3,600 children followed from birth, the investigators found that children who entered daycare before the age of 2 were no less likely than their peers to suffer from allergies or asthma at the age of 8.

But early daycare did not appear to raise those risks either, senior researcher Dr. Johan C. de Jongste, of Erasmus University in Rotterdam, the Netherlands, told Reuters Health in an email.

Instead, the findings suggest that daycare has little long-term effect on children’s respiratory health — and that it should not be seen as a way to protect them from allergies and asthma down the road, the researchers report in the journal American Journal of Respiratory and Critical Care Medicine.

The study, de Jongste said, challenges what is known as the “hygiene hypothesis” — the theory that the increasingly germ-free surroundings of modern life are actually contributing to an increase in allergies and asthma.

Some researchers speculate that exposure to viruses and other bugs at daycare may help push a young child’s immune system toward infection-fighting mode, and away from a tendency to over-react to the normally benign substances — the basis of allergic conditions.

Along with daycare attendance, certain other factors that suggest greater early-life exposure to infections — like having older siblings — have also been linked to lower risks of childhood allergies and asthma.

But in the current study, neither daycare nor the presence of older siblings showed long-term effects.

Of the 3,643 children followed from birth to age 8, 30 percent started daycare before age 2. These children were twice as likely as the rest to suffer breathing difficulties in the first year of life.

But the pattern shifted with time, and by the age of 8, early-daycare children were no more — or no less — likely to have episodes of wheezing or other signs or symptoms of asthma. Nor did early daycare affect the risk of showing reactions to airborne allergens during allergy testing.

Children with older siblings were also more likely to have wheezing symptoms in the first year of life, but were no more or no less likely to have signs or symptoms of allergies or asthma at age 8.

The findings, de Jongste’s team writes, suggests that early daycare simply “shifts the burden” of respiratory symptoms to an earlier age, with no tradeoff of protective effects later on.

“Hence,” they conclude, “early daycare should not be promoted for reasons of preventing allergy and asthma.”

SOURCE: American Journal of Respiratory and Critical Care Medicine, September 15, 2009.

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