Psychiatrist ANNA LEMBKE's new book Dopamine Nation is about the neuro transmitter - the chemical messenger released in the brain most involved in processing rewards. It plays a big part in addictions.
Interested in learning a new skill in the new year? CNN chief medical correspondent Dr. Sanjay Gupta says that will also improve your brain health. "The act of experiencing something new — or even doing something that's typical for you, but in a different way — can all generate these new brain cells," says Gupta, a practicing neurosurgeon and associate professor of medicine at Emory University School of Medicine. He has a new book about the brain.