Dwarfs, or midgets, as people sometimes call them, have fascinated people since ancient times. Many royal courts kept dwarfs for the amusement of the royal family. And one of the most famous dwarfs of all time, General Tom Thumb, was seen by millions of people. His real name was Charles Stratton, and he was less than 100 centimeters tall and weighed 11 kilograms at the age of 25!

People may be very tall or very short and still be of normal height. Too much or too little growth is usually caused by disease or by the way certain glands do, or do not, work.