Steven Austad

Steven Austad holds the Protective Life Endowed Chair of Healthy Aging Research at the University of Alabama at Birmingham, a position he took up in 2021, and founded UAB's Nathan Shock Center of Excellence in the Basic Biology of Aging [1]. He also serves as Senior Scientific Director of the American Federation for Aging Research [1].

Before his academic career, Austad worked as a lion tamer and wildlife trapper, and his research path into aging biology grew out of his field studies of opossums [1]. He discovered that opossums living on Sapelo Island, a barrier island off the Georgia coast with no natural predators of opossums, showed slower collagen cross-linking, later reproductive senescence, and roughly 25% longer maximum lifespans than opossums living on the predator-rich mainland [1]. This finding became a foundational piece of evidence for the evolutionary theory that aging rate itself can evolve in response to extrinsic mortality risk, since animals facing lower predation pressure benefit evolutionarily from investing more in long-term tissue maintenance.

Austad is one half of one of the most famous wagers in the aging-research field. In 2000 he bet fellow biogerontologist S. Jay Olshansky $150 that someone alive today will live to at least 150 years old by the year 2150, a bet Olshansky took the opposite side of [2]. The wager was structured so that the stake compounds in an investment account over the 150-year period; a 2016 Nature news article reported the growing pot had already prompted the two men to double their bet, and coverage of the wager describes the eventual payout, if the fund is left to compound for the full 150 years, as potentially reaching hundreds of millions of dollars for the winner's heirs [2][3]. Austad has taken the optimistic side of the bet, arguing that advances in geroscience could plausibly extend maximum human lifespan well past the current confirmed record of 122 years, held by Jeanne Calment [3].

Austad's own public statements are more nuanced than the bet alone suggests: he has argued in interviews that he does not expect radical life extension to arrive from any single "magic bullet" compound, but rather from a combination of interventions that each address different biological mechanisms of aging simultaneously, a more incremental position than the wager's framing implies [3]. He has also been a vocal proponent within the field for taking basic comparative biology, studying naturally long-lived species like the opossums, whales, and naked mole rats, as seriously as work on standard laboratory model organisms like mice, arguing that evolution has already solved some aging problems that laboratory-only research risks overlooking [1].

As Senior Scientific Director of AFAR, Austad occupies a nonprofit grant-coordination role rather than a company-founder or product-sales role, distinguishing his commercial exposure from several peers in this reference who hold equity in biotech or supplement companies whose products they also promote. He does not appear in available reporting to hold a comparable equity stake in any longevity supplement or drug company.

The plain takeaway: Austad's opossum research is a genuinely important, peer-reviewed contribution to evolutionary theories of aging, and his bet with Olshansky is a real, publicly documented wager rather than a publicity stunt, structured with an actual escrow arrangement, but Austad's own more careful public statements about incremental, multi-intervention progress are considerably more modest than the eye-catching "150 by 2150" framing that gets most of the media attention.