Love Coffee? Sorry, But This Is How Long Caffeine Stays In Your System

Caffeine from coffee and tea can take 2-12 hours to leave your system, with an average half-life of 5 hours. Experts recommend limiting caffeine intake after lunch to avoid sleep disruptions, as caffeine can be found in various beverages and foods. The NHS advises not to exceed 400mg of caffeine a day, while pregnant women should limit intake to 200mg or less.

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