Peter Attia

Peter Attia

"The longevity physician arguing we should train today for our 90-year-old self."

Peter Attia is a physician who specializes in the science of longevity, and the author of Outlive, a book that reframes medicine around extending 'healthspan' — the years lived in good function — rather than simply treating disease after it appears. A former surgeon and McKinsey consultant, Attia argues that mainstream medicine is oriented around what he calls Medicine 2.0: reactive treatment of the 'four horsemen' of chronic disease (heart disease, cancer, neurodegenerative disease, and type 2 diabetes) well after the underlying damage has accumulated. His proposed alternative, Medicine 3.0, is proactive and highly individualized, built around exercise, nutrition, sleep, and emotional health decades before symptoms appear. Attia is especially known for emphasizing strength, stability, and cardiorespiratory fitness — training now for the physical demands of old age — over any single diet or supplement.

1 book·Longevity & Preventive Medicine
Peter Attia

Books by Peter Attia

Our in-depth summaries and reviews of his work

Key Ideas & Recurring Themes

Medicine 3.0: proactive, not reactive

Attia contrasts today's disease-treatment model with a proactive approach that intervenes decades before the 'four horsemen' of chronic disease — heart disease, cancer, neurodegenerative disease, and diabetes — actually appear.

Train for your Centenarian Decathlon

Attia urges readers to work backward from the specific physical tasks they want to still perform in their 80s and 90s — carrying groceries, getting up off the floor — and train for that strength and stability now.

Protein and muscle mass matter more with age

Attia highlights protein intake and muscle preservation as an underappreciated lever for healthy aging, arguing most people's protein needs increase, not decrease, as they get older.

Notable Quotes

"Strategy without tactics is the slowest route to victory. Tactics without strategy is the noise before defeat."
— Outlive
"One macronutrient, in particular, demands more of our attention than most people realize: not carbs, not fat, but protein becomes critically important as we age."
— Outlive
"Unfortunately, in today's unhealthy society, “normal” or “average” is not the same as “optimal.”"
— Outlive

New to Peter Attia?

Start with our most popular summary of their work.

Read the Summary

Book Author Peter Attia