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16. Cut Off Caffeine by Mid-Afternoon

Why it Works: Caffeine blocks sleep-promoting chemicals in the brain and can stay in your system for 6–8 hours. An afternoon cup of coffee can easily keep you up at night.

Try this: Avoid coffee, tea, soda, and energy drinks after 2 p.m.

A woman sits at a computer at night, holding a white mug near her face. The screen glows in front of her, and blurred city lights are visible through the window behind her—suggesting late-evening caffeine use.

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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.