For many people, the aroma of freshly brewed coffee is the start of a great day. But caffeine can cause headaches and jitters in others. That’s why many people reach for a decaffeinated cup instead. I ...

Paraxanthine, a compound your body creates when it breaks down caffeine, is being touted by some as a better alternative to coffee, offering energy and focus without the jitters.

Kim Kardashian is now the face of a caffeine-free energy drink. Instead of containing caffeine, Update includes paraxanthine, ...