Caffeine Effects: Withdrawal, Sleep & Health Impact

Caffeine impacts everything from sleep quality to concentration and heart rate. Learn how long withdrawal takes, the diuretic effects on the body, and the potential risks of taking caffeine tablets with medication or alcohol.

Three young beautiful women drinking coffee at cafe shop.

Caffeine Differences in Coffee, Tea & Cocoa

Published Sep,06 2011 | By Cathleen Anderson

Caffeine stimulates the central nervous system, providing greater alertness and energy. Drink too much and you may find yourself overly anxious and jittery. Beverages containing caffeine have been enjoyed by mankind for many years, and it does have some beneficial properties. According to MayoClinic.

Residing in upstate New York, Cathleen Anderson is a vegetarian freelancer who has been writing since 1994. She holds a bachelor's degree in psychology from State University of New York, Potsdam and a master's degree in counseling from SUNY, Oswego. Anderson is a licensed, nationally certified counselor who works in an emergency department focusing on the mental and physical health of her patients.