Drinking coffee may slow aging and help prevent heart disease in certain adults

Diabetes, certain forms of cancer, and other conditions may also be inhibited. 

People in a coffee bar drinking espresso.

Americans are coffee addicts, and perhaps more so nowadays, now that we're working longer hours and getting less sleep than decades past. 50% of Americans drink at least one cup per day. In the past, the pendulum on coffee, and in particular caffeine, swung back and forth as to whether moderate consumption was healthy or not. At one time, too much was thought bad for the heart.

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