Why do we feel sleepy? Why can't we just work on and on without feeling tired? Why?

[newboy78]

If you worked all the time, you would be complaining about that, that's why God asks you to go to a dreamland for sometime and come back to work😛

[codyccc]

Melatonin increases in your brain

[chriscdi]

cause we aren't ants lol

[boggboss]

Because thats not how the human body works lol

[JoyGirl]

We are human...