The IMF Found the Average 70-Year-Old Now Thinks Like a 53-Year-Old Did in 2000. Here’s What One 60-Something Did With Those Extra Years

 Written by 

Julien Raby

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In a recent opinion piece for i News, bestselling novelist Kate Mosse revealed the terrifying leap she took at age 61.

Her unlikely cure for creative stagnation? Stage fright.

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After 15 years as a full-time carer, risk-taking had quietly slipped off her to-do list.

Then one question from a theatre producer changed everything.

Her story holds a lesson that reaches far beyond the footlights.

The Hidden Trap of Success

Success feels wonderful. It also breeds caution.

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At the same time, success can make you play safe. Success can make you stop pushing yourself to try new things, even more so once you are in your sixties and are being sent daily offers for “assisted living accommodation” and mobility aids.

Mosse knows this pattern firsthand. Her breakthrough novel, Labyrinth, landed in 2005 when she was 44, though it was her fifth book.

She calls that success luck, pointing to forces mostly outside an author’s control: happenstance, zeitgeist, timing.

When Caring Eats Your Energy

For 15 years, Mosse has cared for her father and, later, her mother-in-law. Appointments, medication and fixed schedules follow her even on work trips.

Responsibilities of that kind drain emotional space as much as practical time.

I was simply too tired and too short of time. Not fearful, exactly, but certainly cautious of upsetting the apple cart.

Sound familiar? Plenty of carers, parents and burned-out professionals will recognize that careful, keep-everything-balanced mindset.

The Invitation That Changed Her Course

Around her 60th birthday, Mosse admitted that sticking to proven strengths wasn’t stretching her. Then, after the 2021 lockdowns, a theatre producer asked whether she had ever considered a one-woman show.

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  • Comfortable grip that makes high-rep workouts easier to handle

She leapt at the chance.

I was curious, excited and terrified too, but interested to see if I could transform myself from author into performer.

Lights, music, costumes, special effects and a script all needed mastering. Old dog, new tricks, as she put it.

Her reasoning came down to one belief about creative work:

You have to keep challenging yourself and be prepared to fall flat on your face, otherwise you will never discover what you are capable of.

She also leans on a line from Samuel Beckett: “Ever tried. Ever failed. No matter. Try again. Fail again. Fail better.”

Shaking in the Wings

Two years later, opening night loomed. Nerves hit hard.

I was literally shaking in the wings. Bones rattling, dry throat, clammy hands, I have never been so nervous before or since.

She wondered whether she could walk on at all. Then the music started.

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  • Full-body training with one weight using swings, squats, and presses
  • Solid cast iron build that feels stable and lasts for years
  • Comfortable grip that makes high-rep workouts easier to handle

But then the music started and since, in a one-woman show, there is no one else, I had no choice except to step up.

And it was liberating, and exhilarating, and got a little less terrifying every night.

Round Two: A 36-Gig Tour

Rather than retreating, Mosse signed up for another run two years later. The schedule was punishing.

  • Length: six weeks
  • Gigs: 36 shows
  • Route: Stafford in winter to Newcastle among apple blossom
  • Mishaps: a coughing fit, a rogue haze machine that flooded the auditorium with smoke, and a medical emergency in Keswick that paused the show for half an hour

Chaos, in other words, arrived most nights. Why keep going?

The joy of connection, the intimacy and the unpredictability of live performance, made every knee-trembling moment worth it.

Is 60 Really the New 40?

Mosse points to a report this week from the IMF declaring that “the seventies are the new fifties.” She notes that a person aged 70 in 2022 matched the cognitive ability of a 53-year-old in 2000.

Her view of the “silver travel boom” fits the picture: retirees now expect 20 or 30 more years of living, and they fill those years with languages, backpacking, ballroom dancing and long-delayed guitars.

As we get older, it’s too easy to become set in our ways.

Her remedy is simple: seek new experiences and seize opportunities that come knocking.

How to Borrow Her Mindset

  • Say yes first. Mosse accepted the one-woman show before fear could vote.
  • Expect glitches. Smoke machines misfire, and nothing collapses permanently.
  • Learn something unfamiliar. Her new skills ranged from lighting cues to costume changes.
  • Fail better. Beckett’s advice treats setbacks as raw material.
  • Respect your limits. Caring duties meant her fifties were a season for steadiness, and she pushed outward once space opened up.

Her Mind-Clearing Habits

Daring on stage doesn’t mean constant intensity. Mosse protects quiet moments too.

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FULL-BODY TRAINING

If you want something simple that actually works, this is one of the most effective tools I’ve used to build strength, conditioning, and endurance without needing a full gym setup.

  • Full-body training with one weight using swings, squats, and presses
  • Solid cast iron build that feels stable and lasts for years
  • Comfortable grip that makes high-rep workouts easier to handle
  • Rereading classics: Arthur Conan Doyle’s Sherlock Holmes stories, which she first loved in summer 1979 after her O-levels.
  • Gym distraction: A Place in the Sun and Escape to the Country on the treadmill, a gentler alternative to remorseless news.
  • Countryside walks: wellies, raincoat, spring blossom and daffodils.

Her recent outing to Fishbourne Marshes, a landscape she has walked since childhood and now shares with her grandson, was screen-free by design.

No podcasts, no music, just the sound of the landscape, the curlews and the gulls.

She also climbed into the South Downs to the Iron Age fort known as the Trundle, gazing over Sussex and Hampshire.

What Comes Next

Mosse shows no sign of slowing. Her first young adult book, Feminist History for Every Day of the Year, arrives in September 2025 from Macmillan Children’s Books.

It was also a much-needed reminder that you are never too old to try something new or push yourself.

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