A human being loses an average of 40 to 100 strands of hair a day.
133
The human sigh acts as a physiological reset button.
23
Pain occurs when sounds are above 130 db.
124
The average person's skin weighs twice as much as their brain.
131
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
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
Gorillas can catch human colds and other illnesses.
205
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307