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Serotonin can impact the mitral valve of the heart and potentially accelerate a cardiac condition known as degenerative mitral regurgitation, according to a new study led by Columbia researchers.

Most hair, body, and personal care products contain “chemicals of concern.” A Columbia epidemiologist explains how to figure out what's safe to buy and use.

Even if your diet doesn’t meet nutrition guidelines, it’s unlikely you'd benefit from any dietary supplement.

Columbia-led study holds promise for finding therapies that work.