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Feds give thumbs-up to new, no-cal sweetener, stevia

The Food and Drug Administration (FDA) late last night declared that a controversial new sweetener is safe, raising the ire of consumer advocates who charge that not enough tests have been done to rule out possible risks...

December 18, 2008 — Coco Ballantyne

Don't be fooled: six holiday health myths verified or debunked

Does the bulk of heat escape our bodies through our heads? Does eating more at night pack on the pounds? Does sugar really make kids hyper? ScientificAmerican.com talked to Indiana University School of Medicine pediatricians Rachel Vreeman and Aaron Carroll to find out if these and three other popular health myths are true...

December 18, 2008 — Coco Ballantyne

Sleep badly, burn calories?

Sleep apnea, a disorder that can cause sufferers to temporarily stop breathing while snoozing, has long been associated with obesity. Paradoxical new findings suggest an ironic benefit: the worse the disease gets, the more calories patients burn...

December 15, 2008 — Jordan Lite

Colonoscopy: Not so great after all?

For about a decade, public health officials have been aggressively pushing colonoscopy, a procedure that inspects the colon for growths using a tube and camera, as the gold standard for detecting tumors while they're still treatable...

December 15, 2008 — Jordan Lite

The Skinny on Fat: Is Obesity in Our Genes?

Researchers have identified six genes that may play a role in our appetite and, as a result, in whether we're plump or thin. They report in Nature Genetics that the genes appear to affect brain activity that controls how much we eat, indicating that obesity, at least in part, may stem from behavior passed on from one generation to the next...

December 15, 2008 — Coco Ballantyne

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