A member asked:

How long does caffeine stay in your system?

A doctor has provided 1 answer
Dr. Julia Aharonov answered

Specializes in Anesthesiology

A long time...: It stays in your body longer than you might think. Half life of caffeine can be anywhere from three to seven hours which means it can stay in your system 5 times that long depending on your metabolism.

Answered 8/15/2017

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