Hotwired

How the Hidden Power of Heat Makes Us Stronger

Bill Gifford

$55

Hardback

Forthcoming
Pre-Order now

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English

Vermilion
19 March 2026

Global warming; Popular medicine & health; Coping with illness; Coping with old age; Exercise & workout books

A radical exploration of how our bodies can harness heat for optimum health by #1 New York Times bestselling co-author of Outlive

'This book moves beyond anecdotal claims...and provides a critical synthesis of the evidence demonstrating how hyperthermia can enhance endurance, improve metabolic health and generate the protective physiological changes necessary for extending healthspan.'

- Peter Attia, #1 New York Times bestselling author of Outlive

Humans were born to sweat - and sweating makes us stronger.

In Hotwired, bestselling co-author of Outlive and science editor Bill Gifford explores how heat can improve our performance and our health.

Combining cutting-edge science, personal discovery and practical insights, Gifford reveals how humans evolved to excel in hot conditions - and how we've lost touch with this ancient advantage. He plunges into the steamy world of Finnish saunas, serves as a test subject in heat labs and tackles a 100-mile bike ride under the blazing Texas sun to show how exposing ourselves to discomfort can expand our physical and mental limits. He even explores how infrared sauna therapy and cold plunging could fight depression more effectively than medication. And he examines how, in cities around the globe, social saunas are reviving communal wellness.

Whether you want to perform better, extend your lifespan or adapt to a warming planet, Gifford shows you the incredible benefits of reawakening your body's natural adaptability to heat and cold. Hotwired is a thrilling call to reimagine heat - not as a threat, but as a tool for strength, resilience and longevity.

By: Bill Gifford
Imprint: Vermilion
Country of Publication: United Kingdom
Dimensions: Height: 240mm, Width: 156mm, Spine: 28mm
Weight: 500g
ISBN: 9781785045035
ISBN 10: 1785045032
Pages: 320
Publication Date: 19 March 2026
Audience: General/trade , College/higher education , Professional and scholarly , ELT Advanced , Primary
Format: Hardback
Publisher's Status: Forthcoming

Bill Gifford is co-author of the #1 New York Times bestseller, Outlive, which has sold more than two million copies worldwide, as well as the New York Times bestseller Spring Chicken- Stay Young Forever (Or Die Trying). A veteran magazine writer and editor, he is fascinated by extraordinary athletes and cutting-edge health science. He is a longtime contributing editor at?Outside, and his work has appeared in Wired, Bloomberg Businessweek, Men's Health, Bicycling, Slate and Best American Sportswriting.

Reviews for Hotwired: How the Hidden Power of Heat Makes Us Stronger

In Hotwired, Gifford delivers a highly researched, rigorous examination of a potent, often-underutilised hormetic stressor: thermal exposure. This book moves beyond anecdotal claims…and provides a critical synthesis of the evidence demonstrating how hyperthermia can enhance endurance, improve metabolic health and generate the protective physiological changes necessary for extending healthspan. * Peter Attia, #1 New York Times bestselling author of Outlive * HOTWIRED is a gripping investigation into the power of heat and how it shaped our evolution and can still transform our physical and mental health today. Bill Gifford makes the science come alive, reminding us that the path to a stronger body and mind often runs straight through discomfort. * Michael Easter, New York Times bestselling author of The Comfort Crisis and Scarcity Brain *