Because the caffeine content in green tea exists on a spectrum, the U.S. FDA estimates an 8-ounce cup of green tea can ...

Energy drinks are known for their energy-boosting effects. However, they can adversely affect various body systems and ...

For some, that disturbance works in a positive way.” Kennis added, “There are some painkillers that people take for migraine ...

Though usually safe for healthy people, energy drinks can pose serious risks for those with heart conditions or sensitivity to stimulants. Energy drinks like Red Bull, Monster, Celsius, and 5-hour ...

Caffeine can stay in your system for up to 12 hours, but this may vary based on individual factors. Learn more about side ...

A woman was left horrified after discovering her husband had been downing a 'energy drink' on his way to work, only to realise it wasn't actually an energy drink at all ...