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Fewer teens having oral sex
More than a third of teens engage in oral sex by the time they reach 17, according to the CDC.
August 17th, 2012
10:41 AM ET

Fewer teens having oral sex

Fewer teens aged 15 to 17 are having oral sex now than in 2002, according to a new report from the U.S. Centers for Disease Control, but the number remains high.

The report, based on data from The National Survey of Family Growth, found that more than a third of teens had engaged in oral sex by the time they turned 17. That number climbed to almost 50% by age 19, and more than 80% for 24-year-olds.

The study - based on computer surveys given to over 6,000 teens - also looked at the timing of first oral sex in relation to the timing of first vaginal intercourse. It found that the prevalence of having oral sex before vaginal intercourse was about the same as those having vaginal intercourse before oral sex.

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'Super brains' in old folks identified
Scientists have identified "SuperAgers," whose brains seem immune to typical declines in thinking and memory.
August 17th, 2012
09:26 AM ET

'Super brains' in old folks identified

A group of 80-year-olds is making scientific waves because of an uncanny ability to age gracefully, from a cognitive standpoint. The moniker they've been given by scientists is "SuperAgers," because as they age, their brains seem immune to typical declines in thinking and memory.

"We know that as we age, our cognitive skills decline, and there's also a change in the amount of brain matter," said Emily Rogalski, assistant research professor at the Cognitive Neurology and Alzheimer's Disease Center at Northwestern University's Feinberg School of Medicine. "Then there are these people over 80 who seem particularly sharp and somehow resist changes in memory when they age."

That resistance to memory changes means identifying what makes someone a "SuperAger" is important because of the insight their brains could provide for their cognitive opposites, those who suffer with neurodegenerative diseases like Alzheimer's.

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About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.

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