By weight, Bone is five times stronger than steel.
417
Pain travels through your body at 350 ft. per second.
36
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
Within three days of death, the enzymes that once digested your food begin to eat you.
22
The lifespan of a tastebud is ten days.
130
In the average lifetime a person will breath in about 44 pounds of dust.
21

