Q: Did Jillian Michaels go too far by supplying caffeine pills to her "Biggest Loser" team last week? Are such methods dangerous? None of the controversies went anywhere: All four lawsuits were ...

Caffeine pills can be safe if you take them according to label directions and a doctor's guidance. If you take high doses of caffeine, you may develop severe side effects like a rapid heartbeat and ...

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 ...