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"Caffeine helps activate the brain chemicals involved in mood, like dopamine and serotonin," says study author Alberto Ascherio, MD, a professor of epidemiology and nutrition at Harvard School of Public Health. Coffee is also a rich source of antioxidants and other healthy compounds that may help protect against cancer, according to new research.
One caveat: If you don't drink coffee, don't start (caffeine is a stimulant and can cause jitters or an upset stomach in some people). But if you're a java lover, consider this permission to pour yourself an extra cup.
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