1.The largest bone in the human body is the femur. It can support 30 times the weight of a person's body. Ounce for ounce, that's stronger than steel.
2.A human’s ears and nose never stop growing.
3.A human skeleton renews itself completely every 10 years
4.Bone is five times stronger than a steel bar of the same width, but it is brittle and can fracture on impact.
5.The human brain uses just as much power as a 10-watt light bulb.
6.Facial hair grows faster than any other hair on the body.
7.The brain is more active at night than during the day. Scientists don't know yet why this is.
8.After eating too much, your hearing is less sharp.
9. About 32 million bacteria call every inch of your skin home, but they are mostly harmless and some of them are even helpful.
10.All babies are color blind at birth, they see only black and white.
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