咖啡有害健康吗？

Just the opposite. Numerous studies have shown that coffee is associated with impressive health perks. It's been linked to lower risk of heart disease, Parkinson's, and liver cancer -- and it might even help you live longer. In fact, a recent study in the American Journal of Epidemiology found that people who drank coffee had a lower risk of death over the course of 11 years compared with those who skipped joe altogether.

Reality check: Some people believe that drinking coffee before working out will leave you dehydrated. In actuality, one study found that java's diuretic effects don't exist with exercise.

恰恰相反。许多研究表明，咖啡对健康大有好处。它能减少心脏病、帕金森症和肝癌的发病风险——甚至可能帮你活得更久。实际上，美国流行病学期刊最近的一项研究发现，在11年里，喝咖啡的人比完全不喝咖啡的人死亡风险更低。

事实纠正：有人认为运动前喝咖啡会让你脱水。事实上，有研究表明，咖啡的利尿作用并不会发生在运动中。