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
The human brain is more active during sleep than during the day.
28
Gorillas can catch human colds and other illnesses.
205
Babies crawl an average of 200m a day.
212
The average person will go on a date at least 100 times before they finally marry.
33
Obsessive nose picking is called Rhinotillexomania.
101
Yawns are more contagious among people with closer relationships.
163
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
160