What's the average human life span...72 years...78 years?Actually, science has determined that humans were designed to live120 years, and that, until now, most people died too soon.It's also now clear that most of the maladies we commonlyassociate with aging, such as frailty, senility, and arthritisaren't part of nature's plan, but the result of otherfactors such as bad nutrition, disease, and disuse. Best of all isthe news that, no matter how old...