How Do Muscles Grow?

To grow muscles, you need to challenge them so they can adapt and become stronger.

1. Challenge the Muscle Muscles grow when they are pushed beyond their usual limits. This happens during resistance exercises such as lifting weights, using resistance bands, or doing hard endurance workouts.

2. Feed the Muscle After being challenged, muscles need nutrients to rebuild. Your body uses protein and other nutrients from food to repair and improve the muscle.

3. Rest and Recover Muscles grow during rest, not while exercising. With enough sleep and recovery time, the body uses nutrients to rebuild muscles stronger than before. This process is called muscle hypertrophy.