Tag: Factors affecting caffeine

According to scientific findings, the initial stimulating effects of caffeine can be felt in as little as 5 to 30 minutes after consumption. This rapid onset is due to caffeine's quick absorption into the bloodstream, where it begins to interact with the central nervous system. However, the peak intensity and duration of the effects are highly individual and depend on multiple variables, making the experience different for everyone.

In healthy adults, the average caffeine half-life is around 5 hours, but for a 120 mg dose, the effects can be felt for 4 to 6 hours and linger even longer, making the answer to 'How long will 120 mg of caffeine last?' surprisingly variable depending on individual factors.

For healthy adults, the average half-life of caffeine is approximately 5 to 6 hours, meaning it takes this long to clear half the caffeine from your system. However, this clearance rate is highly variable and depends on numerous factors, from your genes to your daily habits.