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.

Caffeine in Folgers Coffee

Published Jul,26 2011 | By Brenda Goodnough

Many people enjoy a cup of coffee in the morning. Caffeine is a bitter substance found naturally in coffee beans. Whether you need a to jump start the day or just enjoy the flavor, all forms of coffee contain caffeine.