Men have larger hearts; women's hearts beat faster.
77
By weight, Bone is five times stronger than steel.
417
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
The human heart creates enough pressure to squirt blood 30 ft.
37
Bearing a male child can alter a woman's brain by leaving male DNA that can persist for the rest of her life, making her less likely to suffer from Alzheimer's disease, promote tissue repair, and improve her immune system.
16
Poor eyesight (myopia) is associated with higher IQ.
232
Our Right Lungs takes more air than our left lung.
194
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