Peter Attia

Peter Attia (born 1973) is a Canadian-American physician and longevity author whose private practice and 2023 book Outlive promote a preventive model he calls Medicine 3.0, and whose commercial ventures are funded by Silicon Valley capital. He was named among the confirmed 2026 registrants of Dialog, the invitation-only society cofounded by Peter Thiel, in the membership roster leaked to WIRED in June 2026, which identified him as a physician and the author of Outlive.¹

Surgery, the NIH, and the Pivot

Attia was born in Toronto, Canada, and took dual undergraduate degrees in mechanical engineering and applied mathematics at Queen's University in Kingston, Ontario, after a youth that included serious competitive boxing. He earned his medical degree from the Stanford University School of Medicine in 2001 and entered general-surgery residency at the Johns Hopkins Hospital, where he trained for five years before leaving in 2006 without completing the program; he is not board certified in any medical specialty. He spent two years as a surgical-oncology fellow at the National Cancer Institute of the National Institutes of Health under Steven Rosenberg, working on immune-based therapies for melanoma.²³

Attia then left clinical medicine for the consultancy McKinsey & Company, where he worked in credit-risk practice, before moving into longevity medicine. He established a private practice, Attia Medical, in 2014, later rebranded Early Medical, applying his preventive framework to a small roster of clients across San Diego and New York.²⁴

The Nutrition Science Initiative

In September 2012 Attia cofounded the Nutrition Science Initiative with the science journalist Gary Taubes, serving as its president. The nonprofit raised roughly 40 million dollars from the Laura and John Arnold Foundation, structured as a 4.7 million dollar seed grant and 35.5 million dollars committed over five years, to fund rigorous experiments testing the carbohydrate-insulin hypothesis of obesity. Its flagship Energy Balance Consortium pilot, published in the American Journal of Clinical Nutrition in August 2016, found that a ketogenic diet did not increase fat loss as the hypothesis predicted.⁵⁶

Attia resigned as president at the end of December 2015, the Arnold Foundation withdrew its funding, and the organization was formally dissolved on December 31, 2021. The collapse was documented at length by WIRED in 2018.⁶

Outlive and the Drive

Attia's Outlive: The Science and Art of Longevity, written with the science journalist Bill Gifford and published by the Random House imprint Harmony on March 28, 2023, became a number-one New York Times bestseller, with the publisher reporting more than three million copies sold. The book sets out a framework it calls Medicine 3.0, a proactive and personalized approach contrasted with the reactive modern medicine it labels Medicine 2.0, organized around what Attia terms the four horsemen of chronic disease: atherosclerotic disease, cancer, neurodegenerative disease, and metabolic disease. It introduces the "Centenarian Decathlon," a method of working backward from the physical tasks a person wants to perform in their final decade of life and training for them in advance.⁷

Attia launched the podcast The Peter Attia Drive in June 2018, a long-form weekly program on health, longevity, and performance that reports more than one hundred million downloads and operates a paid membership tier. His clinical practice, described on the CBS program 60 Minutes in October 2025 as charging fees "much closer to 100,000 dollars than 500,000 dollars" and serving fewer than seventy-five patients, has drawn an elite-access critique from medical commentators including the cardiologist Eric Topol, who wrote that the approach is "not affordable except for the most affluent individuals."⁸⁹

Silicon Valley Backing and the Longevity Network

Attia's commercial ventures are financed by Silicon Valley investors. He cofounded the diagnostics startup Biograph, which charges thousands of dollars a year for executive-physical screening, with the cybersecurity founder John Hering; its backers include Vy Capital, Human Capital, Alpha Wave, WndrCo, and the angel investor Balaji Srinivasan. He was chief science officer and an early investor in the supplement company David Protein, which raised a 75 million dollar Series A in May 2025 led by Greenoaks with Valor Equity Partners, and a scientific adviser and investor in the supplement brand AG1. No documented business, investment, or advisory relationship connects Attia directly to Thiel or to the Founders Fund technology investors.¹⁰¹¹

Attia has been publicly critical of the immortality-engineering strand of the culture. Speaking to Fortune in June 2023 he warned against a "Silicon Valley ethos of 'we are going to engineer our way to immortality,'" calling much of it "such nonsense," a position that distinguishes his clinical-prevention approach from the supplement-maximalist biohacking exemplified by Bryan Johnson, whom the press has documented Attia criticizing without naming.¹²

The Thiel Life-Extension Landscape

Thiel has funded life-extension research over two decades. He pledged 3.5 million dollars in September 2006 to the Methuselah Foundation cofounded by Aubrey de Grey, structured as 500,000 dollars over three years plus a matching grant of up to 3 million dollars, and by 2014 had reportedly given more than 6 million dollars to de Grey's anti-aging research. Founders Fund invested in the DNA-sequencing firm Halcyon Molecular, where Thiel and Luke Nosek took board seats in 2009 before the company closed in 2012, and participated in the 116 million dollar 2016 Series B of the senolytics company Unity Biotechnology alongside Jeff Bezos. The Thiel Foundation launched Breakout Labs in November 2011 to fund early hard-science and longevity startups through 350,000 dollar grants.¹³¹⁴¹⁵

The transhumanist and cryonics lineage that anchors this culture runs through extropianism and the Alcor Life Extension Foundation, whose chief executive from 2011 to 2020 was Max More, the writer who coined the modern usage of "transhumanism." Thiel signed up for cryonic preservation with Alcor, telling the Honestly with Bari Weiss podcast in May 2023 that he thinks of it "more as an ideological statement," that he does not "necessarily expect it to work," and that "we should either conquer death or at least figure out why it's impossible." Attia is not documented as a participant in Thiel's anti-aging investments.¹⁶¹⁷

The Epstein Emails

In late January 2026 the Department of Justice released roughly three million documents from the Jeffrey Epstein files, and Attia's name appeared in emails spanning 2014 to 2019. Reported exchanges include a June 2015 message in which Attia wrote, "The biggest problem with becoming friends with you? The life you lead is so outrageous, and yet I can't tell a soul," and a January 2016 message stating, "I go into JE withdrawal when I don't see him." Attia issued a public apology around February 2, 2026, writing that he regretted "putting myself in a position where emails, some of them embarrassing, tasteless, and indefensible, are now public."¹⁸¹⁹

The fallout was rapid. Attia resigned as a CBS News contributor on February 23, 2026, stepped down as chief science officer of David Protein, was dropped as an adviser by AG1, and had his name removed from the Biograph website.¹⁹