You Are Not the Same as You Were 7 Years Ago
That your body replaces all of its cells every 7 years. Do you still think that you are the same person who was 7 years ago?

What is the specialty of sneezing?
Every time you sneeze some of your brain cells die.
(But nothing happens, the amount is so small that it has no effect on us)

What is the specialty of blue eyes?
People with blue eyes can see well in dark.

What is the specialty with tongue muscle?
Your tongue is the only muscle in your body that is attached only at one end.

Which of the human body part does not increase in size ever?
Eyes - they neither increase, nor decrease in size after the birth.
While nose and ears continue to grow throughout the life.

Blood has many colors
Do you know hat blood has several colors - mammals' blood is red, the blood of insects is yellow and the blood of lobsters is blue.

Eyesight of an infant
The infant's vision is blurred initially up to about six months, that is why he cannot see clearly, nor his eyes are stable at one place.

The tooth is the only part of the human body that cannot heal itself.

If you stop getting thirsty, you need to drink more water. When a human body is dehydrated, its thirst mechanism shuts off.

 Intelligent people have more zinc and copper in their hair.

When a person dies, hearing is the last sense to go. The first sense lost is sight.