Stress can speed up aging at the cellular level, but the right mindset can slow it back down, according to a UCSF researcher who studies this for a living.
Quick Take
- Dr. Elissa Epel, a psychiatry professor at the University of California, San Francisco (UCSF), joined Andrew Huberman’s podcast to explain how stress affects the body and brain.
- The episode covers the difference between helpful “challenge” stress and harmful “threat” stress.
- Epel links chronic stress to cellular aging and mitochondrial health, the cell parts that produce energy.
- She offers tools like reappraisal and “radical acceptance” to help people build resilience.
A Top Stress Researcher Breaks Down The Science
Huberman’s show describes Epel as a professor of psychiatry and behavioral sciences at UCSF who studies how stress wears down the body over time. The episode promises a deep look at acute versus chronic stress, and how both connect to cellular aging and mitochondrial function. That framing matters because most people treat stress as one single thing. Epel’s work says otherwise, and that distinction changes how you should respond to pressure at work, at home, or in a crisis.
Epel’s UCSF title isn’t just decoration. She serves as vice chair of her department and has built a career studying why some people age faster under pressure while others seem to bounce back. Her 2023 appearance with Huberman first introduced these ideas to his audience, tying stress directly to eating habits and metabolism, not just mood.
Good Stress Versus Bad Stress Is Not Just A Mindset Trick
The core idea splits stress into two camps. A “threat” response floods the body with fear and shuts down clear thinking. A “challenge” response, by contrast, still raises your heart rate but keeps your mind sharp and focused. Epel argues the body reacts to short bursts of pressure in healthy ways, but it breaks down under constant, unrelenting strain, the kind common to caregivers and overworked parents.
That caregiving example is not random. Epel’s research has looked closely at mothers under chronic stress, tracing how long-term pressure shows up at the cellular level. The conversation ties this back to mitochondria, the tiny engines inside every cell that produce energy. When stress hormones stay elevated too long, those engines can lose efficiency, which researchers connect to faster biological aging.
Reappraisal And Radical Acceptance Offer A Way Out
Epel doesn’t just diagnose the problem. She offers tools. One is reappraisal, a technique where you consciously relabel a stressful event as a challenge instead of a threat. Science backs this up broadly. A large systematic review of nearly 100 studies found that people who naturally reappraise stressful situations in a positive light show better mental health and stronger resilience over time.
The other tool Epel describes is “radical acceptance,” which she sums up with a simple image: dropping the rope. Instead of pulling against a stressful situation you cannot control, you let go of the tug-of-war entirely. That doesn’t mean giving up. It means stopping the exhausting fight against reality so your energy goes toward what you can actually change.
Why This Episode Fits A Bigger Media Pattern
Huberman’s podcast ranks as one of the most listened-to health shows in the country, which means ideas like Epel’s reach millions of people fast. That reach is a strength and a responsibility. Research on health podcasts shows they boost awareness effectively, but their influence on actual long-term behavior change is far less certain. A clear summary of good science is still just a summary, not a substitute for the full research record.
The episode stands as a public, dated, and well-documented installment in Huberman’s library, cataloged across platforms including Apple Podcasts and the show’s own episode archive. For listeners dealing with daily stress, whether from caregiving, work, or just the grind of modern life, Epel’s message offers something rare in health media: a practical, science-grounded reason to believe resilience can be built, not just inherited.
Sources:
youtube.com, hubermanlab.com, elissaepel.com, linkedin.com
