Caffeine tolerance can be seen within a week of steady use. During that short period, the receptors that caffeine interacts with change in number and function so that the effects of small caffeine doses are no longer felt. The rush and nervous energy seen with the first few uses of the drug goes away and caffeine tolerance can quickly become caffeine dependence.
Learn More About Caffeine Addiction
- Caffeine Effects
- Caffeine Treatment
- Caffeine Withdrawal
- Hidden Caffeine
- History of caffeine use
- Caffeine Dependence
The other side of the equation is that these same body changes happen in reverse when caffeine is removed from the diet. A good rule of thumb is that it takes as long to get rid of withdrawal symptoms as it does to heal a bruise. Just as a bruise takes time to heal and repair tissue, resetting a person's caffeine tolerance level requires actual changes in cells.