Human heads have between 1 and 3 million hair strands

It is one of the interesting figures about the body that a French surgeon has gathered.

The head has 1-3 million hair strands (photo: combers) - If the whole layer of the cerebral cortex is opened, there will be a 3 mm thick " spring rolls " with an area of ​​90 x 60 cm.

- The brain of a grown man weighs 1,424 kg. Meanwhile, a 9-meter-long dinosaur has only a brain about the size of a mandarin, weighs about 70 g.

- Human tongue average 9cm long, weighs 50g. The tongue is made up of 17 muscle bundles, so it is extremely flexible.

- On average every 10 years, the human ear is 2.2 mm long.

- The head has 1-3 million hairs. If men periodically cut their hair, their whole lives have cut 9-10 meters of hair.

- If a person lives up to 75-80 years old, the heart beats up to 3 billion times.

- The vascular system of the human body is up to 200,000 km long.

- Women all over the world eat 25 tons of food, 3 tons more than men; drink 37,000 liters of liquid, 4,000 liters more than men. The number of women crying is 5 times more than that of men, and their life expectancy is 7 years older than men.