You can not see your own eyes in motion when looking in a mirror since, as your eyes move, your brain automatically blocks blurred images, making you blind at these moments.
The human heart is not on the left side of the chest. It's in the middle, between your right and left lung, tilted slightly to the left..
The fastest growing tissue in the human body is hair.
When you take a step, you are using up to 200 muscles. Walking uses a great deal of muscle power especially if you take your 10000 steps.
Humans are born with 300 bones in their body, however when a person reaches adulthood they only have 206 bones. This occurs because many of them join together to make a single bone.
You can disable your gag reflex by making a fist with your left hand and squeezing your thumb.
Bones make up only 14% of our weight.
Our bodies contain about 0.2 milligrams of gold, most of it in our blood. It would take 5,000 people to make a 0.35 ounce of gold.
The skin is the heaviest organ. The average adult skin weighs about 20 pounds.
Only 4% of the brains cells work and the remaining cells are kept in reserve.
In 24 hours, the blood in the body travels a total of 12000 miles - that's four times the width of North America.
The average person falls asleep in 7 minutes.
For most people, no matter how hard you pinch the skin of your elbows, it barely hurts.
The human body consists of over 600 muscles.
Thickness of skin varies greatly throughout the body. For example, the delicate skin around your eyes is only as thick as a few sheets of paper. The pads on your feet can be as thick as a pencil eraser.
The reason your nose gets runny when you cry is because your tears drain into it.
Children grow faster in the springtime.
The average 150 lbs man loses almost a quart of water a day by breathing. It is visible as water vapor when we breathe on glass.
A women's heart beats faster than a mens.
The adult human brain is about 2% of total body weight.
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