If caffeine blocks the receptors for Adenison, which is responsible for feeling tired/exhausted, why does caffeine help me feel awake in the morning?

Question

After waking up my adenosine level should be very low and l slowly build up upon the day. So why does my morning coffee make me feel awake if there is no adenison to block?

In: 25

Answer 1

2 ways that I know of: if you’re one of those people that yawns when they get up, there’s still some residual adenosine to get rid of. And/or your body is addicted to caffeine so you need it to function correctly

Answer 2

2 ways that I know of: if you’re one of those people that yawns when they get up, there’s still some residual adenosine to get rid of. And/or your body is addicted to caffeine so you need it to function correctly