Saturday, February 26, 2011

8 Medical Myths: Which Should You Believe?


1) Ginger
Grandma's wisdom: Ginger is good for upset stomachs.
Science says: Yes. Good evidence shows ginger reduces nausea.


2) Swimming
Grandma's wisdom: Swimming after eating can lead to cramps and drowning.
Science says: Not exactly, but not completely wrong either. After you eat, blood gets shunted to your digestive tract and away from exercising muscles. That can lead to a buildup of lactic acid in your muscles, so swimming a few laps too soon after lunch could cause a sudden (though not fatal) cramp.


3) Honey
Grandma's wisdom: Honey speeds healing.
Science says: Yes. Mild to moderate burns (but not other types of wounds) heal faster if you spread honey on them -- maybe because it creates a moist, antibacterial environment that promotes tissue growth.


4) Butter
Grandma's wisdom: Put butter on a burn.
Science says: No. There's no evidence of a benefit from butter.


5) AC
Grandma's wisdom: Sleeping in air-conditioning can give you a chill.
Science says: She may be onto something. Air conditioners dry out the protective layer of mucus along nasal passages, which likely allows viruses to infect you more easily. Viruses reproduce faster inside a cold nose too.


6) Cold
Grandma's wisdom: If you go out with wet hair, you'll catch a cold.
Science says: Maybe. Some research indicates (but doesn't prove) that a wet head helps cold viruses take hold, by tightening blood vessels in the nose and making it harder for white blood cells to reach the viruses and fight them off.


7) Apple
Grandma's wisdom: An apple a day keeps the doctor away.
Science says: Granny's overstating this fruit's potency. Still, the peel is a good source of quercetin, an important antioxidant that, studies suggest, helps lower blood pressure, fight asthma and allergies, and prevent heart attacks.


8) Chocolate
Grandma's wisdom: Chocolate gives you pimples.
Science says: Not quite. Chocolate bars might trigger an acne flare-up, but if so, the culprit is probably the sugar, milk, and gooey fillings, not the cocoa.

Monday, February 14, 2011

Saturday, February 05, 2011

8 Things That Are Making You Fat


1. Your Reading Comprehension : We all know that person, the one who eats burgers and still loses weight while you eat salad and yogurt and can’t shed a pound. Turns out the problem may not be your appetite; it could be your reading skills. According to a study published in the Journal of Consumer Research, healthy-sounding labels are duping dieters.


2. Your Diet Soda Habit: Put down the pop! Studies have shown that subjects who drink two or more diet sodas a day have waist size increases up to six times greater than those of people who don’t drink diet soda. These insidious sodas may be free of calories, but they're not free of consequences!


3. Lack of Sleep: New research suggests sleepless nights don’t just ruin your mood the next day—they could also damage your waistline. Researchers at the New York Obesity Nutrition Research Center at St. Luke’s-Roosevelt Hospital found that while sleepy folks seem to burn the same number of calories as well-rested people, they consume about 300 more calories a day. 


4. The Room Temperature: Trying to lose weight? Turn down the thermostat. A cozy home could be contributing to making you fat, suggests research in the journal Obesity Reviews. When our bodies are cold, we shiver, causing our muscles to contract to generate heat—and burn calories.


5. Your Overweight Friends: A New England Journal of Medicine study declared that people can actually ''catch'' obesity from close friends.


When researchers followed 12,067 people over 32 years, they concluded that those of us with very close friends who are obese have a 171 per cent higher chance of becoming obese too. The theory goes: you're influenced by your friends, and if they overeat, you may unwittingly follow their lead. Surprisingly, spouses have less sway over the belly than close friends of the same sex. The good news is that it may also work in reverse. Hang out with thin people and you might lose weight.


6. Eating Too Much: If you prescribe to the idea that eating small meals frequently throughout the day makes it easier to reduce overall calories, you could be doing yourself in. Turns out we're programmed to think that a meal is a perfect combination of proteins, carbohydrates, and fat. In reality, the mini-meals in some studies are much more like small—very small—snacks. How small? Check out the story below for a reality check.


7. Toxic Chemicals: While you may never have heard of phthalates—a family of chemicals used to make plastics flexible—new evidence linking these and other so-called “endocrine-disrupting” chemicals with obesity has been growing. In fact, researchers have taken to calling many of these substances obesogens (obesity-promoting chemicals). A healthy immune system can help ward off the dangers of these chemicals, but why not boost your body's efforts by not packing your produce in plastic the next time you buy groceries?


8. Your Stress Level: When you have chronic stress, your body steps up its production of cortisol and insulin. Your appetite increases, and so do the chances you’ll engage in “hedonistic” eating in the form of high-calorie sweets and fats. When you try to combat stress with food, you activate the reward center of your brain. After that initial feel-good spell wears off, you’ll reach again for the same thing that made you feel good, calm, and relaxed in the first place: more food.