1) Heredity 2) Physical activity
3) Age
4) Environment
exercise, escape, freedom, release, training.... etc
Wow
Its,
Aerobic Activity
Dude ur talking about something else...
aerobic exercise
I will definitely increase the muscle strength if you continue to increase the intensity of the exercise, but it won't happen right away, you need to make sure your muscle rest enough time and regains its strength, if you don't, then the muscle will just lose its strength.