Some foods can give you an instant caffeine boost, all without the dreaded crash afterward.

Caffeine can linger in your system for 10 or more hours, which can impact sleep. Double-shot lattes and cold brews have ...

For most healthy adults, consuming up to 400mg of caffeine a day is considered safe - Getty According to Nichola Ludlam-Raine, a dietitian and the author of How Not To Eat Ultra-Processed, for most ...

Medically reviewed by Suzanne Fisher, RD Decaf coffee offers similar benefits to regular coffee without the caffeine.Drinking decaf coffee helps avoid caffeine side effects, such as anxiety and a ...

Caffeine helps us wake up and stay alert, but too much can be harmful to our health. Some coffee drinks at Starbucks contain almost the daily limit for caffeine in one cup. Starbucks also has drinks ...

Experts discourage regular consumption of energy drinks. High caffeine content paired with the supplemental ingredients in ...

Energy drinks may promise instant energy, but their high caffeine and stimulant content can place serious strain on the heart ...

Chai tea contains caffeine that may briefly raise blood pressure. But regularly drinking unsweetened chai tea may support a healthy blood pressure.

Excessive caffeine consumption from energy drinks can raise the risk of stroke, heart rhythm disorders and dehydration, ...

Energy drinks are designed to boost mental and physical alertness, but they often contain high levels of caffeine, sugar, and ...