Explore articles on caffeine metabolism, sleep science, and how to maximize your results with the LastSip calculator.
Learn how caffeine can quietly disrupt your sleep, even if you fall asleep with no problem. Explore why small amounts linger longer than expected and how they interfere with your body’s natural sleep cycles.
Read More →Discover why caffeine affects everyone differently and how your unique metabolism shapes your ideal cutoff time. Learn how factors like genetics and hormones influence your personal caffeine rhythm.
Read More →Answers about how LastSip calculates your caffeine cutoff time, including absorption, sensitivity, thresholds, and custom drink tracking.
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