Photo: Doing what I love to do at age 65. Deep in the Escalante Grand Staircase wilderness, Utah; on a eight day, eighty mile off-trail through hike. May 2019. Photo Credit Paul Gardner In my previous What I Learned newsletter, https://crooked-thumb.com/2021/04/07/interval-training-live-longer-live-healthier/ I defined interval training, how it works and the benefits of incorporating interval training […]
