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 average person will go on a date at least 100 times before they finally marry.
33
Your heart will pump about 212 million liters in its lifetime.
26
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
The average sperm cell swims at 8 inches per hour.
4
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
One human hair can support 3 ounces.
191
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15