The species of bacteria that dominate our guts may strongly affect whether we’re thin or fat. Researchers at Washington University collected samples of gut bacteria from pairs of twins in which one was obese and the other thin. Then they transplanted the bacteria into mice. The mice that received the bacteria from the obese twins became obese; the mice that […]
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Cannabis and Pregnancy – What are the potential health effects? The combination of cannabis and pregnancy can be harmful to your baby’s health. The chemicals in marijuana (in particular, tetrahydrocannabinol or THC) pass through your system to your baby and may harm your baby’s development. Although more research is needed to better understand how marijuana may affect you and your […]
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Russian teens are killing themselves en masse, and the authorities “seem oblivious,” said Alexander Tretyakov. The country has long had one of the world’s highest teen suicide rates, and in the past decade it’s gotten worse. Thousands of teens have joined “suicide forums” on Vkontakte, the Russian equivalent of Facebook. There they share stories of abuse and desperation and trade […]
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Feeling itchy from a sunburn, a bug bite or some other skin irritation is miserable, but the pleasure you get from scratching it isn’t just the absence of pain. It feels legitimately good to scratch, and the reason is fascinating. A 2008 study at Wake Forest University hooked people up to a MRI scanner and monitored brain activity when they […]
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We’re more reliant than ever on prescription medications. Should we be worried? Looking at the numbers alone, the U.S. runs almost entirely on Prozac and heart pills. They’re among the most prescribed medications, according to our national annual checkup from the Centers for Disease Control and Prevention (CDC), which this year included a special report highlighting the ever growing […]
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High blood sugar doesn’t just increase your risk of developing diabetes—studies have also shown a link between blood sugar and dementia. Researchers tracked the blood glucose levels of more than 2,000 older adults for seven years and found that those who had high glucose levels—but not diabetes—were nearly 20 percent more likely to develop dementia than those with low levels. […]
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For years the Federal Dietary Guidelines have handed out a blueprint to Americans for good nutrition. As it turns out this may not be a good outline for all Americans. People are different in all respects; even identical twins have different ways they respond to food. People have been told to follow the same diet as the next person. Now […]
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As humans get older, our brains shrink by about 15 percent, making us vulnerable to memory loss, dementia, and depression. But the brains of our closest relatives, chimpanzees, stay the same size throughout life, a new study has found. And while 50 percent of Americans over 85 suffer from Alzheimer’s, elderly chimps appear to have no similar problems. “The million […]
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