The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
Babies crawl an average of 200m a day.
212
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
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