Carnosine is also known to rejuvenate old cells by protecting them and their content from damaging rogue molecules known as free radicals. Free radical damage is linked to many devastating conditions and diseases that tend to surface as the years creep up.  Rejuvenating the cells help them live longer, which can help keep the body in peak shape in later years. Therefore, maintaining higher levels of Carnosine in the body has shown great promise for improving all-around health and slowing the aging process.