Science Common Sense

749 - How does exercise help us maintain a healthy weight?

Exercise helps us maintain a healthy weight by burning extra calories and keeping our muscles strong. When we exercise, our body uses energy from the food we eat to keep moving. This energy is measured in calories. If we burn more calories than we eat, our body loses weight. If we burn the same number of calories as we eat, we stay the same weight.

Think of it like money in a bank. If you spend more than you save, you'll have less money. If you spend the same as you save, you'll have the same amount. Exercise is like spending money, it helps burn the extra calories, so we don't gain weight.

Also, when we exercise, our muscles grow stronger. Stronger muscles help our body work more efficiently, which means we burn more calories even when we're resting. This helps us stay healthy and maintain a healthy weight.