Find out how much caffeine is in popular energy drinks like Red Bull, Monster, and Celsius, and what side effects to watch for.

HARLINGEN, Texas (ValleyCentral) — For the average person, it is the norm to wake up and start the day with a cup of coffee ...

Coffee isn’t your only option for alert mornings—this calming alternative may help support attention and clearer thinking.

Apart from your morning joe, many other foods factor into your caffeine intake. From desserts and snacks to drinks, these foods may be keeping you up at night.

Energy drinks are colorful, sweet, and hugely popular with teens. A new investigation found they also may contain more ...

Fact checked by Nick Blackmer Caffeine levels vary more by brewing method than temperature.Hot coffee may have slightly more ...

Consuming coffee or energy drinks has become as instinctive to some as brushing their teeth. But after the parents of a ...

With an extra 75 milligrams of caffeine compared to the regular versions of its refreshers, Starbucks’ new drinks widen the ...