Jon F.R. Barrett, M.B., B.Ch., M.D., Mary E. Hannah, M.D.C.M., Eileen K. Hutton, Ph.D., Andrew R. Willan, Ph.D., Alexander C. Allen, M.D.C.M., B. Anthony Armson, M.D., Amiram Gafni, D.Sc., K.S. Joseph, M.D., Ph.D., Dalah Mason, M.P.H., Arne Ohlsson, M.D., Susan Ross, Ph.D., J. Johanna Sanchez, M.I.P.H., and Elizabeth V. Asztalos, M.D. For the Twin Birth Study Collaborative Group: A Randomized Trial of Planned Cesarean or Vaginal Delivery for Twin Pregnancy.I’m talking REAL weight. Here are 3 explanations why you have to lift weight after 50: 1. BONE RELATIVE DENSITY You imagine drinking milk and acquiring calcium supplements is going to keep your bones strong and hold off the dreaded hump back again caused by osteoporosis? Think again. The simplest way to build strong bones is usually by lifting large weight. Consider it for a second – When you pick up something heavy, your brain determines that you need a little more thickness for the reason that arm-bone or else it will snap such as a twig.