You see, scientists have always made mistakes while performing experiments, but that doesn't always hinder them from reaching groundbreaking successes.

If it were possible to control the increase in Parathyroid hormone as we grow older, we could as well start preventing the issue of osteoporosis as we grow, or what do you think?

Research to prevent or end old age has been ongoing for a while now, we could reach a possible theory in the nearest future, and maybe the parathyroid hormone may be one of the hormones to give such a breakthrough. For now, hands are crossed.