You need to read this
Was watching a show on ABC today called...The human body secrets of your life revealed"
One of the people on the show was Lew Hollander 87 years "young" and what an inspiration.
He does marathons all the time and I watched him swim from Alcatraz across San Francisco Bay 1.2 miles and then he did an 8km bike ride and then he did a race to the finish line.
A handsome man for his age too.