Basketball players are usually very tall. Because they need to put the ball into the basket. But other sports players are sometimes short. Some of the best football stars are not very tall. Short people often have better balance(平衡) than tall people, so they don't fall down(倒下)often, In some sports, the players must have good balance, for example, table tennis and running. You don't need long legs to run fast. Balance is also important. Not all of the fast runners in the world are very tall. Some people are tall and some are short. The tallest person in the world is 2. 31 meters. And the shortest person in the world is only 57cm. Today, young people in many countries grow taller than their parents. This is because they eat better food today.
