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Resisting temptation: It’s all in your brain
October 22nd, 2013
05:00 PM ET

Resisting temptation: It’s all in your brain

If I offer you a bag of potato chips today or a box of chocolate truffles next week, which would you choose? Neuroscientists are interested in exploring what happens when the brain must choose between receiving a reward immediately or in the future, especially when waiting may result in a prize you like better.

A seahorse-shaped structure in the brain called the hippocampus is involved in recalling events from the past, and imagining them in the future. A new study in the journal PLOS Biology explores what role the hippocampus plays when a person has to decide between getting a reward now or later.

This study looked at healthy individuals as well as those with Alzheimer's disease, a condition characterized by memory impairment and associated with atrophy of the hippocampus, and a different brain condition called frontotemporal dementia.

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October 22nd, 2013
10:34 AM ET

From a mouse's back: hair restoration hope

Whether because of burns, age-related baldness or other diseases, both men and women are vulnerable to losing significant quantities of hair. There are limited options available for helping them grow it back, but scientists are trying to unlock solutions.

A new study, published Monday in the journal Proceedings of the National Academy of Sciences, offers fresh potential for restoring hair, using a person's own cells. Study authors demonstrated their technique on the backs of mice, but they've genetically confirmed that the hairs themselves are human.

"Everything was done in human cells, both the donors and the recipients. In most of the work that’s been done up to now it’s a hybrid – the hairs are usually part rodent and part human," said Angela Christiano, professor of dermatology at Columbia University Medical Center, one of the senior authors of the new study. "So having an assay that’s all human is actually a big thing."

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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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