The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
A human being loses an average of 40 to 100 strands of hair a day.
133
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
The human brain has the capacity to store everything that you experience.
4k
Only humans shed emotional tears.
331
On average, there's 100 billion neurons in the human brain.
83
A man's beard grows fastest when he anticipates sex.
239