Muscles grow

[Mikalynyen]

What makes muscles grow

 

[Trusylver]

Sub Kwon Y, Kravitz L. How do muscles grow?. IDEA Fitness Journal. 2006 Feb 1;3(2):21-5.


https://www.ideafit.com/wp-content/uploads/files/_archive/022006_howdomuscl.pdf

however, the simple version is, muscle fibres are broken down during training, and are rebuild thicker and stronger while you rest and recover.

 

[mathesonprince54]

protien

 

[MFA.com]

What makes muscles grow

Muscles grow because the body adapts to stress. Here’s the simple breakdown:

1. Training causes tiny muscle damage​

When you lift weights or do resistance training, the muscle fibers experience small tears. This is not bad; it's what triggers growth.

2. The body repairs those fibers​

Your body sends nutrients and proteins to repair the damaged tissue. During repair, the muscle fibers become thicker and stronger than before.

3. Protein synthesis increases

This is the process where your body builds new muscle proteins. It happens after training, especially when you eat enough protein.

4. Hormones help​

Testosterone, growth hormone, and insulin-like growth factor (IGF-1) support the repair and growth process.

5. Nutrition fuels growth

• Protein provides building blocks
• Carbs help restore energy
• Fats support hormones

6. Rest and sleep are critical

Most muscle growth happens when you sleep, not when you lift weights. Poor rest slows everything.

7. Progressive overload​

Muscles grow only when you gradually increase the challenge:

• More weight
• More reps
• More sets
• Better technique

In short:

Stress the muscle + feed it + rest = growth.