Since muscles hold the skeletal system in place, weak and out of shape muscles poorly align the body as the bones shift from natural, supportive positions. Anatomical misalignment can create various degenerative joint conditions, as bones and their connections compress together. When joints become crowded, their natural gaps and lubrication are reduced, and grinding wears them down even further. Weight training prevents and relieves these maladies. There are other factors that I feel connect exercise with a longer life.
Exercise encourages a healthy lifestyle.
It is well-recognized that those who begin a fitness program concomitantly reduce or even stop smoking, avoid junk foods, control consumption of alcohol, and begin thinking optimistically about themselves. Exercise controls the progression of, and can even reverse, obesity . People who exercise burn additional calories, preventing the deposition of fat inside the body while reducing their percentages of stored body fat. Contrary to popular belief, exercise does not have to be vigorous or difficult in order to be beneficial. As long as an extra demand is placed upon the body above what is normally experienced, the body will become conditioned, adapt to the new stress, and become stronger and healthier.