To ensure you are physically well, what three things should you do?

exercise (physical activity),  get all your nutrition's and get at least 8 hours of sleep

Explanation:

Keeping bones, joints, and muscles healthy can help ensure that you’re able to do your daily activities and be physically active. Doing aerobic, muscle-strengthening, and bone-strengthening physical activity at a moderately-intense level can slow the loss of bone density that comes with age.

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