Dierdre Wolownick's new memoir, "The Sharp End of Life," chronicles her life as the mother of world-class rock climber Alex Honnold as well as her journey to overcome fear and push her personal limits by learning to climb herself. At age 66, she became the oldest woman to climb El Capitan, the 3,000-foot wall in Yosemite Valley. Learn more about your ad choices. Visit <a href="https://megaphone.fm/adchoices">megaphone.fm/adchoices</a>

Wolf Therapy with Teo Alfero

A window into the movers and shakers of the natural places where we love to play. Hosted by San Francisco Chronicle Travel Editor Greg Thomas, the show features in-depth interviews with world-class professional athletes pushing the bounds of human achievement, as well as the influencers and advocates shaping our ideas about the outdoors.