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.

4 Ways to Treat Caffeine Poisoning

Published Oct,06 2011 | By Livestrong Contributor

Caffeine intoxication usually means that there is more than 300 mg of caffeine in a person's system--about three cups of strong coffee in less than an hour or six cans of Mountain Dew in about the same about of time.