Hotwired

In his book "Hotwired," Bill Gifford, known for co-authoring "Outlive" and serving as a science editor, delves into the fascinating influence of heat on human performance and health. Departing from anecdotal evidence, he offers a thorough analysis of research showing that hyperthermia can enhance endurance, boost metabolic health, and promote protective physiological changes that may extend our lifespan, as noted by Peter Attia, author of the bestseller "Outlive." Gifford investigates how humans have evolved to thrive in hot environments, a capability we have largely neglected in modern times. Through explorations, including participating in Finnish sauna rituals, experimenting in heat laboratories, and undertaking a grueling 100-mile bike ride in the heat of Texas, he illustrates how embracing discomfort can push the boundaries of our physical and mental capacities. Gifford also explores the potential of infrared sauna therapy and cold plunging as alternative treatments for depression. Additionally, he observes the resurgence of social saunas as centers for communal wellness in urban areas worldwide. Through these insights, Gifford encourages readers to see heat not as a hazard but as a valuable tool for building strength, resilience, and longevity, offering a compelling argument for rekindling our innate adaptability to temperature extremes.