Tag: Caffeine metabolism

Caffeine is the most widely consumed psychoactive substance in the world, with its stimulating effects typically peaking within an hour of ingestion and lasting for several hours. The duration of its effects depends heavily on individual factors and the body's metabolic process, which determines precisely how long does caffeine last.

An estimated 80% to 90% of adults consume some form of caffeine every day, but how it affects you is largely dictated by a single, powerful liver enzyme. This crucial enzyme, known as CYP1A2, dictates your body's ability to process and eliminate caffeine, explaining why some people are unfazed by an espresso while others get the jitters from a single cup.