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 ...

The levels of caffeine in your blood could affect the amount of body fat you carry, a factor that in turn could determine ...

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 ...

Coffee and the caffeine in it can interact with some drugs. Learn more about which drugs you should not take with coffee and when to discuss it with a healthcare provider.

The 6 Best Caffeine Pills On The Market Right Now In a world where clocking longer hours and boosting productivity is the norm, the demand for reliable sources of caffeine has surged. Caffeine pills ...

Suddenly stopping caffeine can cause the brain to go into withdrawal. This happens because caffeine temporarily block receptors, and then when the caffeine is stopped, the brain releases too much of ...

Reviews and recommendations are unbiased and products are independently selected. Postmedia may earn an affiliate commission ...