This could be why 👇

Caffeine is metabolized in the liver, but not everyone metabolizes it at the same speed.

This depends largely on the activity of a certain enzyme (called CYP1A2).

Depending on the activity of this enzyme, you could be a slow metabolizer or a fast metabolizer of caffeine.

Slow metabolizers feel the effects of caffeine more intensely—with jitters, nervousness, restlessness, racing heart, or trouble sleeping.

Fast metabolizers don’t.

🧬 This is based on genetics!

The best thing to do is to know your limits and not buy into the caffeine culture if it doesn’t work for you ☕