What happens in our body that makes us fall asleep when we close our eyes?

Question

Like is it our brain that’s like “ok sleep time” and we just doze off?

In: Biology

Answer 1

Build up of chemicals in the brain –> Feel sleepy

Feel sleepy –> Close Eyes

Closed eyes –> *Windows Shutdown Noise*

For a more in-depth read, look at Caffeine and its role in blocking Adenosine Receptors in the brain.