In the journal Cell, researchers report that when a worm gene called elt-3 becomes less active, lots of other genes do the same, and worms age. So what, you ask? The scientists want to find out if a similar process happens in other animals, including humans. If so, keeping key genes active may keep aging at bay.

Stanford University’s Yelena Budovskaya and colleagues basically showed that aging is written into worms’ genetic script — at least, in a lab where worms lived out their days without becoming some other animal’s supper. The elt-3 gene was one of the worms’ important aging genes. When the elt-3 slowed down, aging picked up its pace. Read more

Long-time mobile phone users who talk more than an hour a day on the devices may be may be more likely to have high-frequency hearing loss, researchers say. “Our intention is not to scare the public,” says Naresh K. Panda, MS, DNB, chairman of the department of ear, nose, and throat at the Post Graduate Institute of Medical Education and Research in Chandigarh, India, and researcher for the study. The study, he tells WebMD, is preliminary and small. “We need to study a larger number of patients.”

His team found that people who had talked on cell phones for more than four years and those who talked more than an hour daily were more likely to have these high-frequency losses. These losses can make it difficult to hear consonants such as s, f, t and z, making it hard to understand words. But another hearing expert familiar with the study says there is as yet no cause for alarm.
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If you’re one of the estimated 57 million people in the U.S. with prediabetes, an expert medical committee has some advice for you. The committee, assembled by the American College of Endocrinology and the American Association of Clinical Endocrinologists, has been meeting in Washington, D.C., for the last two days talking about prediabetes.

Don’t blow it off. In prediabetes, blood sugar levels are above normal but not high enough to be classified as diabetes yet. But prediabetes isn’t harmless; it makes diabetes (and its many complications) more likely. And it’s a risk for your heart right now. The bottom line: Prediabetes is an immediate risk and a shadow hanging over your future health. So get aggressive about dealing with it now. Don’t wait until it gets worse.
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It’s the first study to make such a connection, said study senior author Dr. Susan Redline, director of the University Hospitals Sleep Center at Case Western Reserve University in Cleveland. “In adults, there has been evidence that less than six hours of sleep a night was associated with high blood pressure levels,” said Redline, who is professor of medicine and pediatrics at Case Western Reserve. “No study has been done in adolescents.”

One of every seven teens in the study had either hypertension, which is high blood pressure greater than 120 over 80, or borderline high blood pressure called prehypertension. Teens with less than 85 percent sleep efficiency had nearly three times the odds of high blood pressure, the researchers reported. Read more