Get smart about science: Sorting through the studies about caffeine and other choices

Coffee, elixir of the gods. Studies say drinking it can lower your risk of developing type 2 diabetes, Parkinson's disease, Alzheimer's disease and mouth cancer. It can prevent cavities. It can make you happier. It can kill a headache. It can make asthmatics breathe a little easier. It can ease the effects on the heart and liver of hard, heavy drinking.

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