Three years ago, Justin Zheng, an entrepreneur in San Francisco, lay groggy in bed while a group of venture capitalists twiddled their thumbs waiting for him. “I completely forgot this meeting was ...

Finishing a term paper? Working the second shift? Driving late into the night? Many of us grab hold of a coffee mug as if it were a life raft in The Struggle To Stay Awake. Caffeine is certainly ...

These energizing foods provide steady focus and alertness—without the jitters or crash. You don’t need coffee for lasting energy. Foods like dark chocolate, bananas, and berries offer natural energy ...