How You Can Be Fit But Not Healthy

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How You Can Be Fit But Not Healthy         Controversial research suggests exercise won't protect your heart if you don't also eat well and, for some people, take drugs. Read More WATCH VIDEO: How Exercise Rewires Your Brain Exercise does more than flatten those abs -- it physically alters your brain to better handle stress! Suspending Life Could Save Dying Victims         Doctors replace a patient's blood with a cold saline solution, dropping the body's temperature. Read More WATCH VIDEO: Why We See the White Light Near Death Is white light evidence of an afterlife, or is something else going on? Rover Opportunity Celebrates Mars Spring Power Boost         NASA's Mars Exploration Rover Opportunity is having its own springtime celebration. Read More WATCH VIDEO: 3 Questions: Mars We answer three tough questions about the Red Planet. Can a Brain Injury Make  You a Genius?         Have you ever heard the phrase, "What doesn't kill you makes you stronger?" Some brain injuries do that. Watch Follow Discovery News on Facebook! Get your sci-tech headlines all day on Twitter too! Follow us @Discovery_News. At Discovery we value your privacy. If you would like to be removed from Discovery News emails like this, please click here to our subscription center, where you can manage your account. We recently updated our privacy policy. This policy is effective as of 10/30/07. To see new policy click here . Discovery Communications, LLC One Discovery Place Silver Spring, MD 20910 © 2014 Discovery Communications, LLC