The human sigh acts as a physiological reset button.
23
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
The human brain doesn't stop developing until about 25 years old.
102
It takes approximately 12 hours for food to entirely digest.
93
You forget 90% of your dreams.
256
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
A person can live without food for about a month, but only about a week without water.
156