Want to build your muscles? Know the science behind how muscle building is done.

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Muscle size increases when a person continually challenges the muscles to deal with higher levels of resistance or weight . This process is known as muscle hypertrophy.

Muscle hypertrophy occurs when the fibers of the muscles sustain damage or injury. This happens when you strain during a workout. The body repairs damaged fibers by fusing them, which increases the mass and size of the muscles. Proteins are the main factors here in fixing up the teared parts of the muscles that that's why proteins are called the body building food. Basically proteins fill up the damaged parts and that's how your muscle grows and increases in size. It is essential to have a proper diet during workouts to have a proper growth.

Certain hormones, including testosterone, human growth hormone, and insulin growth factor, also play a role in muscle growth and repair.