What is the 2 hour coffee rule?
Quick answer: the 2 hour coffee rule suggests waiting at least two hours after waking up before drinking your first cup of coffee. This guideline aligns with the body’s cortisol levels, aiming to optimize both the effects of caffeine and the body’s natural wakefulness cycle. The science behind caffeine and cortisol your cortisol levels naturally peak about 30-45 minutes after you wake up. Drinking coffee right away can interfere with this natural process, leading to a less effective wake-up call. Dr. Brooks explains, “cortisol is released when the body needs energy.