Courtesy of Kayla Barnes-Lentz Kayla Barnes-Lentz is trying to delay menopause to age 60 to extend health and fertility. She follows a strict routine and tests experimental treatments for ovarian health, including rapamycin. Proven methods for protecting reproductive health include taking antioxidants and leading a healthy lifestyle. This as-told-to essay is based on a conversation with Kayla Barnes-Lentz, the 35-year-old host of the "Longevity Optimization Podcast," based in Austin. It ha...