This HND piece begins with a brief review of how energy is controlled in biological systems—namely the ATP-ADP cycle. From there, we move into cellular respiration and a short history of sports drinks. What we now call "energy drinks" usually have some amount of caffeine, and there are hundreds of brands available.
The posting concludes by spotlighting a new energy drink, that features some special ingredients to overcome the all-too-familiar caffeine crash—which often follows that needed boost of energy.
Read the complete article.