Complex sentence: Wearing of the body can be attributable to internal or external causes that eventually lead to an accumulation of insults which surpasses the capacity for repair.o these internal and external insults, cells lose their ability to regenerate, which ultimately leads to mechanical and chemical exhaustion.
Split into simpler sentences: Wearing of the body can be attributable to internal or external causes that eventually lead to an accumulation of insults which surpasses the capacity for repair. Due to these internal and external insults, cells lose their ability to regenerate, which ultimately leads to mechanical and chemical exhaustion.