Hotwired: How the Hidden Power of Heat Makes Us Stronger
nonfiction · First published 2026
Author guide
Bill Gifford is an American journalist, contributing editor, and nonfiction author. His work has appeared in Outside, Wired, Bloomberg Businessweek, Men's Health, Men's Journal, Slate, and other publications. His books include a biography of explorer John Ledyard, a study of aging and longevity, a memoir of Catholic Worker service, and books on health, longevity, and heat adaptation. He co-authored Outlive with physician Peter Attia.
Catalog record updated .
nonfiction · First published 2026
Not sure where to begin?
Best entry point to Gifford's recurring interests in aging, health, and longevity.
Recommended starting point for his biography and exploration writing.
Outside the series
nonfiction · 2015
biography · 2007
co-authored nonfiction memoir · 2008
co-authored nonfiction · 2023
#1 NEW YORK TIMES BESTSELLER • A groundbreaking manifesto on living better and longer that challenges the conventional medical thinking on aging and reveals a new approach to preventing chronic disease and extending long-term health, from…
Bill Gifford is an American journalist and nonfiction author whose writing covers science, sports, fitness, health, and longevity.
Sources: hachettebookgroup.com (opens in a new tab)penguinrandomhouse.com (opens in a new tab)
Reference biographies identify Gifford as born in Washington, D.C.; Outside currently lists him as living in Salt Lake City, Utah.
Sources: encyclopedia.com (opens in a new tab)outsideonline.com (opens in a new tab)
He worked as a contributing editor for Outside, served as features editor of Men’s Journal and executive editor of Philadelphia magazine, and wrote for publications including Wired, Businessweek, Slate, and The New Republic.
Sources: hachettebookgroup.com (opens in a new tab)outsideonline.com (opens in a new tab)
After turning 40, Gifford reflected on memory lapses and weight gain—prompted in part by a tombstone-shaped birthday cake—and began investigating the scientific and cultural quest to slow aging.
His book Spring Chicken was identified by Penguin Random House as a New York Times bestseller, and Outlive, co-authored with Peter Attia, reached No. 1 on Publishers Weekly’s hardcover nonfiction bestseller list.
Sources: penguinrandomhouse.com (opens in a new tab)publishersweekly.com (opens in a new tab)