Our brains have a negativity bias and will remember bad memories more than good ones.
15
The human brain doesn't stop developing until about 25 years old.
102
The human sigh acts as a physiological reset button.
23
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
Only humans shed emotional tears.
331
It takes approximately 12 hours for food to entirely digest.
93
Yawns are more contagious among people with closer relationships.
163