caffeine

A bitter-tasting, water-soluble compound that acts as a central nervous system stimulant and has a mild diuretic (increasing urination) effect.

Home » caffeine

Last Updated

October 7, 2025

Explore More

A physical therapist working with a child athlete in a gym.
Preventing youth sports injuries: A guide from a physical therapist
The summer months leading into the fall youth sports season provide an excellent opportunity for young athletes to prepare and ensure safe sports participation. Physical therapy, which is often rec...
RSV vaccine
RSV vaccine
Getting vaccinated for respiratory syncytial virus (RSV) helps protect your body from severe illness. Unlike other common vaccines like the COVID or flu shot, it’s not an annual routine, and it’s n...
Your Brain is Aging: What a Family Physician Wants You to Know
Your Brain is Aging: What a Family Physician Wants You to Know
Roughly 10% of U.S. adults ages 65 and older have dementia, while 22% have mild cognitive impairment, according to a Columbia University study. You might have concerns about your own cogn...