Biological Sleep Clock

An internal clock where tells your body when to sleep and when to stay awake. It can be altered due to your habits, job, travels, etc.

My biological sleep clock is always changing becuase I travel so much!

by Karl Larkins February 18, 2015

Biological clock

When your body starts to make red wine give you hangovers instead of just pleasure.

I think Mike’s biological clock is ticking because that guy is winewasted

by Not Charles Xavier December 08, 2018