Researchers found that higher urinary levels of caffeine and specific metabolites, especially in men, were significantly ...

Between energy drinks and pre-workout supplements, we are jacked up on caffeine. All this charge has benefits—but could also ...

Thanks to caffeine and other ingredients, coffee can boost production of gastric acid, a digestive fluid that helps break ...

For many of us, the day doesn't truly begin until we've had our first caffeine fix. That jolt from a cup of coffee, tea, or ...