If you are cold you are more likely to be hungry because you use energy to keep warm.
143
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Yawns are more contagious among people with closer relationships.
163
The human brain uses approximately as much energy as a 10 watt light bulb.
120
When you take a step, you are using up to 200 muscles.
886
Every year your body replaces 98% of your atoms.
119