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How the brain can make quitting alcohol harder
January 12th, 2012
05:29 PM ET

How the brain can make quitting alcohol harder

If you like to drink but want to stop and don't seem to have to willpower to do so, it may be because chemicals in your brain are telling you to order another pint, new research suggests.

It's been long thought that alcohol triggers the release of naturally occurring opioids in the brain's reward centers, but research has documented how this process works only in animals. A new study in the journal Science Translational Medicine offers insights into why alcohol can be so addictive in humans.

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Red wine researcher said to falsify data
January 12th, 2012
11:40 AM ET

Red wine researcher said to falsify data

The University of Connecticut has notified 11 scientific journals that research on the potential health benefits of red wine led by one of its faculty members appears to contain falsified and fabricated data.

Following a three-year investigation, a university review board has concluded that Dipak K. Das, Ph.D., the director of the Cardiovascular Research Center at the university's school of medicine, in Farmington, manipulated research data in at least 145 instances.

The misconduct spanned seven years and 26 journal articles, according to a report issued by the board.
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Filed under: Health.com

Going with the flow for great sex
January 12th, 2012
07:46 AM ET

Going with the flow for great sex

Ian Kerner, a sexuality counselor and New York Times best-selling author, blogs about sex on Thursdays on The Chart. Read more from him on his website, GoodInBed.

When you hear the words 'heart' and 'sex life' in the same sentence, odds are the speaker is probably talking about love. But your heart - or, more accurately, your cardiovascular system - actually has a lot to do with your ability to perform in the bedroom.

This concept was brought home to me recently when I caught up with my colleague, Dr. Madeleine Castellanos, author of a recent book dealing with male sexual issues. She reminded me that there’s no way we can talk about sexual issues like erectile dysfunction (ED) or other arousal disorders without talking about cardiovascular health.

"When you break it all down, everything in the body, including sex, is dependent on good blood flow," says Castellanos. "Our body's way of nourishing itself and keeping itself vibrant and alive is by carrying oxygen, hormones, and nutrients via the bloodstream to all tissues and cells. The more activity that a certain part of our body engages in, the more blood flow is directed to that area."
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Tri Challenge: Reinventing my world
January 12th, 2012
07:38 AM ET

Tri Challenge: Reinventing my world

Every day this week, CNN will introduce you to one member of the 2012 Fit Nation Triathlon Challenge team.  Today meet Denise Castelli.  As a recent amputee, Denise is searching for a way to reclaim the feeling of being a competitive athlete that she cherished before her accident.

I’ve learned a lot about support over these past few years.  I often stop and think to myself that I don’t know where I’d be without my family, friends, the support of my community and the Challenged Athletes Foundation.

In April 2008, I was your ordinary senior in college.  Well, maybe not entirely ordinary. I was an NCAA softball player, as well as a dean’s list student at the University of New Haven in West Haven, Connecticut. I was only looking forward to my next journey: Life after college.  With graduation around the corner, I couldn’t help but think about the world of possibilities that were out there for me.

But on April 22, 2008, tragedy struck. During one of the final games of that season (and ultimately my career), I took off from first base on a steal, headed for second and broke my leg.  I can still remember hearing the snap and the instant pain that I felt.
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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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