Host: Darryl S. Chutka, M.D.  Guest: Robert Pignolo, M.D., Ph.D.  Our population is aging as our life expectancy increases with time. In general, we’re living longer than those before us. Aging is an interesting concept; we all want to achieve old age, but it’s not something we look forward to. What we really want is to maintain our physical, mental and social well-being in order to achieve a high...