by doing work hard like runing playing sports
it doesnt
it builds muscles and it is good for everyone
delivering more oxygen and nutrients to the cells' muscles improves the peripheral circulation, thus making muscles stronger.
Cardio exercise has a wonderful effect on your health. However, it won't really affect your abs. You'll need to do exercises specifically to tone the abdominal muscles to have a positive affect on that region.
Aerobic exercise positively affect your muscular system. The more you incorporate aerobic exercise, the more you tone your muscles, helping them become lean.
During exercise, muscles produce lactic acid as a byproduct of energy production when oxygen levels are low. This buildup of lactic acid can cause muscle fatigue, soreness, and a burning sensation.
Muscles get their strength from exercise.
With exercise bands, you can work out tons of muscles. Muscles that you can work out are arm muscles, leg muscles and back muscles. With leg muscles, you can work out the thighs, and calves muscles.
The primary muscles used in the snatch exercise are the quadriceps, hamstrings, glutes, shoulders, and back muscles.
The muscles primarily used in the farmer's carry exercise are the forearms, shoulders, and core muscles.
During a dumbbell raise exercise, the muscles primarily worked are the deltoid muscles in the shoulders.
During a lateral raise exercise, the muscles primarily worked are the deltoid muscles in the shoulders.