We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
26
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
The average sperm cell swims at 8 inches per hour.
4
Babies crawl an average of 200m a day.
212
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24