A 3 p.m. can of diet soda is also fine as long as you keep in mind that those 46 mg of caffeine can keep you alert for 8-10 ...

There is no need to brew. Research shows that instant coffee usually contains less caffeine than regular coffee. One 6 oz cup contains roughly 45 mg or an average of about 57.1 mg. Although the ...

So, if you drank an 8 oz cup of coffee (about 96 mg of caffeine) with breakfast, you'd have about 48 mg of caffeine left in your system around lunchtime. And as long as there's at least some ...

Researchers have found that caffeine intake may be partly to blame for office workers' poor performance. Drinking about three cups of coffee and one cup of tea can cause concentration lapses and ...

If you’ve ever thought about extracting caffeine from coffee beans, [Ben] is the guy for you. The last time we ran into him, he had already produced a few aerogel monoliths with a few ...

Administration of 200-300 mg caffeine is shown to induce a mean increase of 8.1 mm Hg systolic BP and 5.7 mm Hg diastolic BP. The increase is observed in the first hour after caffeine intake and ...

And is that amount harmful? At the University of Glasgow, Surgeon Gabriel Weston measured exactly how much caffeine is in some popular caffeinated drinks:- Drink mg caffeine per serving (serving ...

Diet and exercise have always proven effective for weight loss, but some supplements can help speed the process. We think ...

The active ingredient in the hugely successful Austrian product Red Bull is a solid jolt of caffeine, blended with a handful of other ingredients. One 8.3-ounce (0.25-liter) can has two to three ...

Caffeine helps to improve concentration and increase alertness. One 250-ml can of Red Bull Energy Drink contains 80 mg of caffeine. The 80 mg of caffeine contained in one 250-ml can of Red Bull ...

One of caffeine’s primary sites of action in the human body is a stimulating effect on cognitive functions. One 8.4 fl. oz. can of Red Bull Energy Drink contains 80 mg of caffeine. The 80 mg of ...