Basic Info

Generally, it takes three to four hours to metabolise and clear half the caffeine in one's body. Children? metabolise caffeine quicker. Sensitivity to the effects of caffeine varies. Rather like alcohol, tolerance to the effects of caffeine varies with age and use.

Caffeine is readily absorbed and peak concentrations occur 30-60 minutes in young adults after eating or drinking it. High doses which slow metabolism down can remain in the brain between 9-15 hours.

Many factors affect caffeine metabolism

Caffeine faq Original version March 1999. Updating June 2004.
The neuronic site is being overhauled throghout June-July 2004.
neuronic maintenance schedule