There’s definitely a lot of individual variation. But knowing the half-life of caffeine is useful…especially if you actually understand what the half-life of a substance actually means.

Related episodes:

#620: Is coffee good or bad for you?

#414 What is brewed cacao?

#361: How to find coffee that won’t bother your stomach

Find a transcript here.

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How long does caffeine really stay in your system?

Nutrition Diva

How long does caffeine really stay in your system?