After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
A human being loses an average of 40 to 100 strands of hair a day.
133
The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
112
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
22
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22