here’s some information about our body:

1.Hair grows about 1 cm every month.

2.Every day we lose about 50_100 hairs.

3.As your hair grows it dies and hardens. That’s why it never hurts to have a hair cut.

4.Most of the dust in your home is made up of old skin cells.

5.Most of the dirt under your nails is made up of skin cells from scratching.

6.Your smallest muscle is in your ear – it is less than 3 mm long, about the size of a pencil point.

7.It takes about 17 muscles to smile.

8.It takes about 200 muscles to walk.

9.Each hand has 27 bones.

10.The adult brain weighs 1.4 kilograms (3lb) and contains 10 thousand million nerve cells.

11.The left side of your brain controls the right side of your body. The right side of your brain controls the left side of your body.

12.The higher you go, the less oxygen there is in the air. People who live high in the mountains have large lungs.

13.Your heart is so powerful that it only takes one minute for each blood cell to travel all round your body and back to your heart.

14.If all your arteries and veins were laid out from end to end, they would stretch 100,000 kilometers. That is two and half times around the world.

15.Some grown men lose their hair as they get older.

16.Between the ages of 5 & 12, children lose their milk teeth and grow 32 adult teeth.