Being fit means you're in good shape, you have energy, you're active, and you don't get tired easily during the day. Most people who are fit also feel pretty good about themselves.

Any type of regular, physical activity can improve your fitness and your health—even walking, climbing up a flight of stairs, or mowing the lawn. The most important thing is that you keep moving!

There are a lot of benefits to being physically active. It can help

To be fit, you might find it helpful to work on all aspects of fitness, including the following:

Aerobic endurance—This is how well your heart, lungs, and blood vessels provide oxygen and nutrients throughout your body. When you exercise, you breathe harder and your heart beats faster. This helps your body get the oxygen it needs. If you are not fit, your heart and lungs have to work extra hard,...

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