As any habitutal coffee drinker knows, caffeine is a stimulant and a drug. Consume too much, and you'll find yourself addicted and at-risk for associated health problems. But at the same time, study after study has shown that moderate consumption of caffeine-rich foods such as coffee, tea and dark chocolate can help lower your risk of heart disease, diabetes, stroke and cancer -- partially because these foods are all rich sources of disease-fighting antioxidants. But before you pour another cup of joe or open that soda, here's what you need to know.
"9 Essential Facts About Caffeine" originally appeared on Everyday Health