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How Teen Experiences Affect Your Brain for Life

Thanks to sophisticated imaging technology and a raft of longitudinal studies, we’re learning that the teen years are a period of crucial brain development subject to a host of environmental and genetic factors.
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Why It's Hard to Do Marijuana Research

Voters in several states said no to more-liberal marijuana laws. But for scientists, restrictive pot policy could be keeping them from better understanding how the drug works on our brains and bodies.
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Rethinking Alcoholism

Though Alcoholics Anonymous and the many subspecies of programs it has birthed still dominate the alcohol-treatment landscape, new remedy ideas that don't include abstinence are starting to get attention.
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The Mysteries of Lyme Disease

A mysterious rash leads to a confusing diagnosis and more questions than answers. Although Lyme disease has been an American presence for 35 years, there’s still a lot doctors don’t know about it.