Purpose
Reason to get up: one of the most under-rated longevity factors.
Rich Roll said“Roll says switching to a whole-food plant-based diet transformed how he felt within a week or two and fueled his endurance career.”
The science saysReasonable: plant-predominant diets are consistently associated with lower cardiovascular and overall mortality in large cohorts, though the dramatic '7 to 10 days' transformation is personal anecdote, not measured outcome.
Verdict: The diet pattern earns its reputation; the one-week miracle is a story, not a study.
Goldie Hawn said“Hawn says a daily meditation practice physically thickens the brain's cortex and keeps her mind strong with age.”
The science saysBrain-imaging studies link long-term meditation to differences in cortical structure, but the data are largely correlational and the effect is modest.
Verdict: The cortex claim has real studies behind it, but it is association, not a proven cause-and-effect.
Cameron Diaz said“Diaz says there is no secret to aging well beyond living well, resting on five pillars: nutrition, movement, sleep, stress release, and loving relationships.”
The science saysDecades of large cohort studies confirm that regular physical activity and strong social ties are among the most reliable predictors of a longer, healthier life.
Verdict: Unglamorous but true: the boring basics remain the best-supported longevity tools we have.
LL Cool J said“LL Cool J says regular resistance training is an investment that builds physical strength and also sharpens the mind and decision-making.”
The science saysLarge cohort studies find that regular muscle-strengthening activity is associated with meaningfully lower all-cause, cardiovascular, and cancer mortality.
Verdict: Lifting really is equity in your body: the mortality data backs the metaphor.
Jamie Lee Curtis said“Curtis says getting and staying sober from opioids and alcohol is the reason she is still alive.”
The science saysStrong and consistent: alcohol and opioid use are major drivers of early death, and abstaining substantially lowers that risk.
Verdict: Staying sober is one of the few life choices with mortality data this lopsided behind it.
Anthony Hopkins said“Hopkins credits stopping drinking 50 years ago, after a blackout behind the wheel, for the long life he is still living.”
The science saysHeavy alcohol use is a well-established driver of premature death, and large analyses find mortality risk climbs with the amount consumed, so quitting heavy drinking plausibly adds healthy years.
Verdict: The mortality data backs the instinct: for a former heavy drinker, quitting is about as close to a longevity move as a single habit gets.
Dick Van Dyke said“Van Dyke credits staying physically active, doing a full circuit at the gym several days a week into his late 90s, for keeping him mobile and feeling well as he ages.”
The science saysWell supported: regular physical activity in older adults is reliably linked to lower mortality and less mobility decline.
Verdict: One of the better-evidenced habits in the series, and one of the few where the studied population is people his own age rather than gym-going twenty-somethings.
Michael J. Fox said“Fox says optimism, which he roots in gratitude, is what lets him keep going while living with Parkinson's.”
The science saysLarge prospective cohorts and a meta-analysis link higher optimism to lower all-cause mortality and fewer cardiovascular events, though the data are observational.
Verdict: The mindset he describes tracks with better survival odds in the data, even if no study can prove it bought him years.
Rob Lowe said“Lowe credits stopping drinking and staying inside a recovery community for sustaining his health and life over three decades.”
The science saysCutting alcohol use lowers mortality risk, and strong social ties independently track with longer survival, so both halves of what he describes have real support.
Verdict: Two habits, both backed: less alcohol and more people.
Simone Biles said“Biles says ongoing talk therapy has been meaningfully relieving for her mental health, including while travelling and competing.”
The science saysStructured psychotherapy has strong randomized-trial evidence for treating depression and anxiety, though almost none of that research was done in elite athletes.
Verdict: Well-supported treatment, studied in patients rather than podium finishers.
Chris Pratt said“Pratt publicly took on the Daniel Fast, a 21-day Bible-inspired plan of prayer and largely plant-based eating.”
The science saysA short Daniel Fast can nudge cholesterol and blood pressure down over three weeks, but the evidence is one small trial with no long-term or longevity outcomes.
Verdict: A three-week faith fast can move a few numbers, but it is a reset, not a longevity plan.
Deepak Chopra said“Chopra points to research suggesting intensive meditation raises telomerase activity, an enzyme tied to cellular aging.”
The science saysA meta-analysis does find a small association between mindfulness meditation and higher telomerase activity, but the studies are few and small, and no evidence shows this translates into slower aging or longer life.
Verdict: A real signal on a surrogate marker, stretched further than the data reaches.
Smokey Robinson said“Robinson credits his condition in his eighties to training almost every morning and to a daily yoga and breathing practice he has kept up for decades.”
The science saysRegular yoga and general exercise reliably improve balance, mobility and physical function in older adults, though the measured gains are modest and no trial links decades of practice to longevity.
Verdict: The habit holds up, the attribution does not: decades of daily movement help function, they do not explain one man's eighties.
Tony Hawk said“Hawk says that once you reach his age, simply staying in motion in any form is what helps your longevity.”
The science saysLarge pooled cohort data consistently link more daily movement of almost any kind to lower all cause mortality, with the steepest benefit at the low activity end.
Verdict: Unusually well supported for a soundbite: the sport is optional, the motion is not.
Alice Cooper said“Cooper says he beat alcoholism by replacing it with a near daily golf habit, and credits that swap with saving his life.”
The science saysGolfers show lower mortality in large cohort studies and golf delivers real moderate-intensity activity, but no study has tested golf as a treatment for alcohol dependence.
Verdict: The activity is doing real work. The rescue story is the part nobody has measured.
Megan Thee Stallion said“She says she took up regular exercise as a way to redirect her energy after a traumatic period, and that training is what lifts her mood.”
The science saysStructured exercise produces real, measurable reductions in depressive and anxiety symptoms in randomized trials, so the mood effect she describes is one of the better-supported claims in this whole category.
Verdict: A rare case where the celebrity habit and the trial evidence point the same direction.
Diana Nyad said“Nyad argues that walking is the movement humans are physically built for, and that people of any age should return to doing it daily.”
The science saysLarge pooled cohort studies consistently link more daily walking to lower all-cause mortality, with most of the benefit arriving well before 10,000 steps.
Verdict: The mechanism is oversimplified, but the advice lands where the data does.
Mel Brooks said“Brooks credits his long life to still making comedy, saying the work keeps him sane and happy and gives him a reason to be alive.”
The science saysA sense of purpose is one of the better-supported psychosocial predictors of longer survival, though the laughter half of his answer rests on much thinner and less consistent data.
Verdict: The reason to get up in the morning has better evidence behind it than the punchline does.
Norman Lear said“Lear said that laughter, and staying fully present between what is over and what is next, is what added years to his life.”
The science saysCohort studies consistently link a strong sense of purpose, optimism and humour to lower mortality, but they are observational and cannot establish that laughing more causes a longer life.
Verdict: The direction of his claim matches the data, but the causal arrow is still pointing both ways.
Maria Shriver said“Shriver argues that keeping up friendships and social connection is a genuine brain-health habit, alongside exercise, sleep and diet.”
The science saysLarge prospective cohorts consistently link loneliness and thin social contact to higher dementia risk, though no trial has yet shown that adding friendships lowers it.
Verdict: The direction is right and the certainty is borrowed: strong cohort signal, no trial behind it.
Antonio Banderas said“Banderas says that taking an aspirin at the first symptoms of his 2017 heart attack is what saved his life.”
The science saysAspirin given at the onset of a suspected heart attack is one of the best-evidenced emergency actions in cardiology, though it works alongside emergency care rather than instead of it.
Verdict: The story is dramatic, and for once the drama matches the trial data.
Susan Sarandon said“Sarandon says that staying engaged, staying curious and enjoying yourself is a large part of ageing well.”
The science saysPurpose, engagement and social connection are consistently linked to lower mortality and lower dementia risk in large cohorts, but the evidence is observational and cannot show that adopting an attitude causes the benefit.
Verdict: A soft-sounding answer with a surprisingly hard evidence base, and a stubborn causal asterisk.
Dean Ornish said“An intensive program of plant-based diet, exercise, stress management and group support can slow, and in some people improve, cognition in early Alzheimer's disease.”
The science saysOne small randomized trial found modest cognitive benefit, and it sits alongside larger multidomain prevention trials whose results have been inconsistent.
Verdict: Promising and genuinely randomized, but 51 people over 20 weeks is a starting line, not a finish.
John Cena said“Cena says he now trains for lifelong capability rather than maximum weight, aiming to still squat properly in his eighties.”
The science saysRegular resistance training in later life is one of the best supported habits in the whole longevity conversation.
Verdict: Cena is describing the least glamorous and best evidenced way to stay capable.
Julia Louis-Dreyfus said“She says she wants to keep working on ambitious projects and keep making new friends as she gets older, treating that engagement and her health as part of the same package.”
The science saysLarge prospective cohorts consistently link strong social ties and a sense of purpose to lower all-cause mortality, though the studies are observational and cannot prove the direction of cause.
Verdict: The instinct is well supported by cohort data, even if nobody has ever randomised anyone into having friends.