Sprain, Strain, Repetitive movements from a job, illness, disease, injury.
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Aerobic exercise positively affect your muscular system. The more you incorporate aerobic exercise, the more you tone your muscles, helping them become lean.
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Get lots of exercise and mantain a healthy diet.
your penis gets bigger
By regularly doing exercise that strengthens all of your muscles.
it helps jelly
Proper nutrition and proper exercise.
To have strong bones you have to eat well and exercise.
it needs healthy diet,exercise,streching,meditation and hydration
The muscular system is torn slightly with strenuous exercise, especially with weight lifting. Once a muscle is torn through exercise, it recovers, and makes this muscle bigger, stronger and tougher. Therefore, all muscles are similar to callouses.
Muscular, skeletal, nervous and cardiovascular systems directly and endocrine system indirectly.