Answering Your Burning Questions About The Brain

How can we test our brain health? What happens to the brain

during pregnancy? And how easily does the brain heal from

alcohol? On today's episode, Dr. Sanjay Gupta, CNN's Chief

Medical Correspondent, answers listener's questions about

the inner workings of the brain, and shares what he has

learned after decades in the operating room and reporting

on this powerful, 3.5 pound organ. Plus, Dr. Gupta shares his

top tips for keeping sharp.