For years, midlife has been synonymous with crisis—a period marked by dramatic pivots, unhappiness, and the beginning of decline.
Margie Lachman wants to flip that narrative on its head.
As a lifespan developmental psychologist who has spent over three decades studying adults between ages 40 and 60, Lachman argues that midlife isn’t something to dread—it’s an opportunity for growth, purpose, and lasting health.
In a recent interview with The Guardian, Lachman shared insights from her new book Primetime: A New Vision For Midlife and explained why the stereotypes surrounding middle age are not only misleading but potentially harmful.
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The Midlife Crisis Myth
Lachman has been an investigator on the landmark Midlife in the United States study since its inception in 1994. She was approaching 40 herself when she joined.
I went through midlife as we were studying midlife.
What she discovered challenged everything popular culture told us about this life stage. Before Lachman’s work, midlife was either dismissed as uneventful or portrayed as inevitably miserable.
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Her research revealed something different: the belief that midlife is defined by crisis or unhappiness is “flat-out wrong.”
When Lachman and her colleagues surveyed older generations, about 26% reported having experienced a “midlife crisis.” But when pressed for details, respondents described vastly different events—divorce, job loss, health scares—many of which hadn’t even occurred during midlife.
This notion has just gotten out of hand: anything that goes wrong is considered a midlife crisis.
What Actually Defines Midlife
Instead of crisis, Lachman identifies two common threads that characterize middle age.
First: responsibility from both directions. About 45% of Americans in their 40s belong to the “sandwich generation,” caring simultaneously for children under 18 and aging parents who need support.
Having people who count on you, who you can advise and mentor and help, is a central theme of midlife. This can be a good thing—you have a lot to offer—but it can also create a lot of pressure.
Second: visible physical changes. Reading glasses become necessary. Gray hairs appear. Wrinkles deepen.
These outward signs trigger existential concern—the “Oh my God, I’m getting older” moment that makes people fear they’re running out of time.
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Life Satisfaction Actually Increases
Despite stereotypes portraying midlife as uniformly negative, research tells another story entirely.
Life satisfaction remains fairly stable through midlife and often increases. People report feeling more satisfied with their lives as they move through their 40s, 50s, and into early old age.
Younger generations, paradoxically, tend to report lower satisfaction levels and higher rates of depression and anxiety than their middle-aged counterparts.
Lachman believes midlife prompts natural reflection—especially at milestone birthdays like 40, 45, or 50—but reflection doesn’t equal crisis.
Really, in a way, it’s empowering to realise you want to tweak some things, and that you have the opportunity.
Shifting Timelines, Shifting Midlife
Younger generations face different realities than their parents did. Millennials and Gen Z are hitting traditional milestones—home ownership, marriage, parenthood—later in life, if at all.
Lachman predicts this will fundamentally reshape midlife itself.
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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
I think it means midlife will be delayed. With people living longer, healthier lives, it’s certainly merging, from 40s and 50s into one’s 60s and beyond.
Future generations might find themselves caring for children and parents, changing careers, or pursuing additional education well into their 60s—activities previously confined to earlier decades.
The Anti-Aging Industry and Feeling Young
From preventative Botox to “forever 35” facelifts and weight-loss drugs, visible signs of aging—particularly in women—are increasingly being erased or delayed.
Lachman’s perspective is nuanced. She acknowledges western culture’s problematic obsession with youth but sees potential benefits in wanting to look and feel young.
What we find is that subjective age—how young you feel—is as important or even more important in terms of predicting health than your chronological age.
How old you feel matters more than the number of candles on your birthday cake. Subjective age reflects what’s happening inside your body—your biology, cellular changes, and chronic conditions.
While Lachman doesn’t advocate for or against cosmetic interventions, she maintains that anything making you feel genuinely younger could have positive health implications.
You Can Still Change Who You Are
One damaging misconception about midlife? That your personality and identity are set in stone.
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Research shows the opposite. Personality actually improves with age. People become more agreeable, conscientious, and emotionally stable as they get older—less anxious, less neurotic, less depressed.
Lachman emphasizes that personality is simply your patterns of behavior, thoughts, and feelings—all of which can be modified.
If you feel you’re socially isolated and want to become more outgoing, you can actually change your behaviour and become more extroverted, just by engaging in more conversations and going to more social events.
While personality typically stabilizes in the 50s, people in their 40s still possess significant capacity for transformation.
Physical Health: It’s Not Too Late
Genetics account for only 25-50% of longevity and health outcomes. That leaves at minimum half your health destiny within your control.
Midlife represents a critical window. Processes like bone loss, muscle weakening, and lung function decline happen gradually—often unnoticed in your 40s and 50s—but ignoring them guarantees problems later.
Your health in midlife is really important, not only for that current period, but also the long term.
Blood pressure, glucose levels, cholesterol, and weight are all modifiable through lifestyle changes. Regular checkups matter. Monitoring physical indicators matters.
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
Investment in health during midlife pays dividends for decades to come.
Mindset Makes All The Difference
Lachman argues that expectations shape outcomes powerfully.
If you feel like it’s all downhill from here, it’s kind of a self-fulfilling prophecy, so being optimistic, and looking forward to the future, is really very important.
People who believe they can bring about positive outcomes are far more likely to engage in health-promoting behaviors. Those who feel powerless? They don’t even try.
At 40 or 50, statistically speaking, you likely have as much time ahead of you as you’ve already lived.
Viewing midlife as opportunity rather than decline opens possibilities for continued growth and wellbeing.
Keys To Staying Young At Heart
According to Lachman’s research, several factors help people maintain youthful vitality regardless of chronological age:
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
- Purpose and meaning: Feeling you’re making a difference keeps people feeling young
- Mentoring others: Sharing knowledge and experience gained over decades
- Intergenerational connection: Being around younger people provides energy and fresh perspectives
Lachman practices what she preaches. Her lab includes people of different ages who contribute unique strengths based on their varied experiences.
The whole is greater than the sum of the parts.
Looking back on her own middle years, Lachman is unequivocal about her experience.
I’m looking back on it now, but I loved midlife.
Her decades of research suggest that with the right mindset and habits, many more people could say the same.
