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The American Heart Association says children are less fit today than 30 years ago. Researchers looked at 25 million children worldwide. Today's kids run a kilometre one minute slower than their parents could. How far a child can run is falling every year. One reason for this is kids are too fat. They eat too much and do not exercise.
Doctors are worried. Fatter children will be unhealthier in the future. One doctor said children might have heart disease later in life. He said children needed to "get moving". They must try different activities to keep fit. "They can be strong like a weightlifter, or flexible like a gymnast, or skillful like a tennis player."
Back to the fitness levels lesson.
