An increasing number of people are finding trail running relatively late in life – and they’re reaping the health benefits An increasing number of people are finding trail running relatively late in life – and they’re reaping the health benefits E arlier this year, 62-year-old Karla Wagner placed second in the 100-mile division of the Grandmaster Ultras, an Arizona trail-running event designed for 50-and-over runners in the age group known as “grandmaster”. For most of her adult life, Wagner,