ATP is our body's energy currency.
- ATP is our body's energy currency.
- It's Adenosine Tri Phosphate.
- Adenosine builds up naturally the longer you're awake.
- Our bodies use the Adenosine build-up as a kind of clock for how long we've been awake… and thus how tired we should be.
- Caffeine blocks Adenosine, so you don't notice how tired you are.