It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Yawns are more contagious among people with closer relationships.
163
The average person will go on a date at least 100 times before they finally marry.
33
By weight, Bone is five times stronger than steel.
417