Caffeine plays a vital role in our day-to-day functioning, from those going through everyday tasks to high-level athletes stretching the envelope on what their bodies can do--and how greatly they can achieve.

So if you encounter anyone who is down on caffeine, which play a fundamental role in our great line of XS Energy Drinks, then fill them up with a double-shot of caffeinated enlightenment.

For starters, you can steer them to this story in Men's Health magazine. Headlined "The Caffeine Advantage," the article offers "everything you need to know to think faster, exercise harder, and live longer."

And then there's this piece, "Winning With Caffeine," as reported in Men's Journal magazine.