Learn how caffeine affects brain chemicals and health, sleep, and mood. Understand safe daily limits, hidden sources, and signs you’re getting too much.

A whopping one in three people in the U.S. doesn’t get the recommended amount of uninterrupted sleep, which, for the record, is between seven and eight hours per night. If you can relate, you’ve most ...

Caffeine offers some real health benefits—but not if you go overboard. Here’s how coffee, energy drinks, and other caffeine products can affect your health.

Caitlin Beale, MS, RDN, is a registered dietitian and freelance health writer specializing in women’s health, gut health, and integrative nutrition. Though energy drinks can provide a boost of energy, ...

Add Yahoo as a preferred source to see more of our stories on Google. Kratom, an ingredient derived from a Southeast Asian plant that appears in energy drinks, is often marketed as an energy booster, ...

A good night’s sleep is essential for overall health, yet many people struggle with insomnia without realizing that their diet may be a major contributor. Certain foods and beverages contain compounds ...

Drinking coffee too late can disrupt sleep. The best time to drink coffee varies based on genetics and caffeine sensitivity.