Gorillas can catch human colds and other illnesses.
205
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
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
The human body contains over a billion miles of DNA.
147
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 eye blinks an average of 4,200,000 times a year.
233
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73