What neuroscience, psychology, and biology tell us about why play isn't frivolous—it's fundamental.

When was the last time you played?

Not relaxed on the couch. Not scrolled through social media. Not even exercised or practiced self-care. Actually played. Laughed until your stomach hurt. Lost track of time doing something purely for joy. Created something with no goal except the fun of creating it.

If you're like most busy women, you can't remember. Somewhere between childhood and now, play became frivolous. A waste of time. Something for people who don't have 'real' responsibilities.

We stopped playing. We got serious. We optimised our days and hustled hard. And we wonder why we're exhausted.

Here's what science has been trying to tell us - play isn't a luxury. It's not a reward for productivity. It's not something we earn after we've checked all the boxes.

Play is a biological necessity, and we're suffering without it.

What happens in your brain when you play

Let's start with your brain, because that's where the magic happens.

When you engage in play—genuine, absorbed, joyful play—your brain lights up like a Christmas tree. Multiple systems activate at once.

1. Dopamine floods your system

Play triggers the release of dopamine, the neurotransmitter associated with pleasure, motivation, and reward. But here's what makes play special - unlike scrolling social media or eating comfort food (which also trigger dopamine), play provides sustained dopamine release without the crash.

Research from the National Institute for Play shows that playful activities create a 'flow state'—that feeling of being completely absorbed where time disappears. In flow, your brain produces the perfect neuro chemical cocktail - dopamine for motivation, norepinephrine for focus, endorphins for happiness, anandamide for creativity, and serotonin for well-being.

You can't hack your way into this state. You can't optimise it. You can only play your way there.

2. Your prefrontal cortex takes a break

The prefrontal cortex is the part of your brain responsible for executive function, decision-making, and impulse control. It's also the part that's exhausted from running your life.

During play, your prefrontal cortex gets to rest. Other parts of your brain—the limbic system (emotions), the motor cortex (movement), the sensory cortex (experience)—take over. This isn't laziness. It's restoration.

Dr. Stuart Brown, founder of the National Institute for Play, calls this 'cognitive rest.' Your thinking brain gets a break, which paradoxically makes it work better when you return to serious tasks.

3. New neural pathways form

Play literally rewires your brain. When you try new types of play, engage in creative activities, or interact playfully with others, you create new neural connections.

A study published in the journal Neuroscience found that playful learning creates stronger, more flexible neural pathways than rote learning. Adults who regularly engage in play show increased neuro-plasticity—the brain's ability to adapt and change.

This means that play keeps your brain young and adaptable. The opposite of play isn't work. It's rigidity.

The physical benefits: Play as medicine

Your body needs play as much as your brain does. The research is clear and compelling:

Stress reduction

Play reduces cortisol (your stress hormone) by up to 36% according to research from Loma Linda University. Compare that to meditation (20-30% reduction) or exercise (25-30%), and you realise play is one of the most effective stress-management tools available.

But unlike other stress-reduction techniques, play doesn't feel like work. You're not trying to relax. You're too busy having fun to be stressed.

Immune system boost

Laughter (a common byproduct of play) increases immunoglobulin A, an antibody that fights infection. It also increases the number and activity of natural killer cells, which attack viruses and tumour cells.

A study in the American Journal of Medical Sciences found that people who regularly engage in playful activities have stronger immune responses and recover faster from illness.

Better sleep

Play improves sleep quality by regulating your circadian rhythm and reducing rumination. When you play during the day, your brain has less to process at night. You fall asleep faster and sleep more deeply.

Research from Stanford University found that adults who engaged in 30 minutes of play daily reported 40% improvement in sleep quality within two weeks.

Increased energy

This one seems counterintuitive: how does adding another activity give you more energy?

Because play activates rather than depletes. Unlike scrolling (which drains) or even some forms of exercise (which exhaust), play energises. It shifts you from sympathetic (stress response) to parasympathetic (rest and digest) nervous system activation.

You literally have more capacity after play than you did before.

The psychological case: Play as mental health

The mental health benefits of play are profound and well-documented.

Depression and anxiety reduction

Multiple studies show that regular play reduces symptoms of depression and anxiety. A meta-analysis in the Journal of Positive Psychology found that playful activities were as effective as traditional therapeutic interventions for mild to moderate depression.

Play works by interrupting negative thought patterns, providing positive emotional experiences, and creating a sense of agency and accomplishment.

Resilience building

Play teaches you to handle uncertainty, adapt to changing circumstances, and bounce back from setbacks—all core components of resilience.

Dr. Brown's research found that adults with a 'play history' (who played regularly as children and continued as adults) showed significantly higher resilience scores than those without. They handled stress better, adapted to change more easily, and recovered from trauma faster.

Creativity and problem-solving

When you play, you practice divergent thinking—generating multiple solutions to open-ended problems. This translates directly to creative problem-solving in work and life.

Research from MIT's Media Lab found that adults who engaged in playful activities before tackling complex problems generated 3x more creative solutions than control groups.

Play doesn't just make you feel better. It makes you think better.

Social connection

Playful interactions build trust, strengthen relationships, and create shared positive experiences—the foundation of meaningful connection.

Humans are wired for connection.

Couples who play together report higher relationship satisfaction. Friendships that include play are deeper and more resilient. Even brief playful interactions with strangers increase feelings of social connection and community.

What happens when we don't play

The research on play deprivation is sobering.

• Increased risk of depression and anxiety

• Higher cortisol levels and chronic stress

• Reduced creativity and cognitive flexibility

• Weakened immune function

• Sleep disturbances

• Emotional dis-regulation

• Relationship difficulties

• Reduced life satisfaction

Dr. Brown studied violent criminals and found a common thread: severe play deprivation in childhood and adulthood. While that's an extreme example, it illustrates an important point: play isn't optional. It's necessary for healthy human functioning.

When we stop playing, we don't just lose joy. We lose adaptability, connection, creativity, and resilience.

Why we resist play (Even when we know it's good for us)

If play is so beneficial, why don't we do it? The resistance is real and multifaceted.

Cultural messaging

We live in a culture that glorifies productivity and demonises rest. Play is seen as childish, frivolous, or indulgent. 'Adulting' means being serious, responsible, and productive.

This messaging is so pervasive that even when we try to play, we feel guilty. Like we should be doing something more 'useful.'

Identity

For many of us, our identity is tied to being busy, capable, and productive. If we're not grinding, who are we?

Play challenges this identity. It asks us to be instead of do. To enjoy instead of achieve. To prioritise joy over productivity.

That feels threatening to the self we've built.

Permission

We're waiting for someone to tell us it's okay to play. Our boss, our partner, our to-do list. But that permission never comes.

Because honestly - you have to give yourself permission. No one else can do it for you.

What science says about starting small

Here's the good news: you don't need hours of play to see benefits. Research shows that even small doses of play create measurable improvements:

• 5 minutes of play can shift your mood

• 10 minutes can reduce stress hormones

• 15 minutes can improve focus and productivity

• 30 minutes daily can transform your mental health

The key isn't duration—it's consistency and genuine engagement.

A study in the Journal of Happiness Studies found that participants who engaged in 5-10 minutes of play daily for 30 days showed significant improvements in life satisfaction, stress levels, and overall wellbeing. The changes were still measurable three months later.

Small daily play beats occasional big play. Consistency creates transformation.

The different types of play (And why you need variety)

Not all play is the same, and you need different types for optimal well-being:

• Physical Play: Dancing, sports, movement

• Creative Play: Art, music, writing, crafts

• Social Play: Games, playful conversations, shared activities

• Imaginative Play: Daydreaming, storytelling, make-believe

• Nature Play: Outdoor exploration, gardening, observing

• Sensory Play: Cooking, texture exploration, aromatherapy

• Object Play: Building, puzzles, hands-on creation

Research shows that variety matters. Different types of play activate different brain systems and provide different benefits. A well-rounded play practice includes multiple types.

You get to experiment and discover what lights YOU up. What's playful for someone else might feel like work to you, and that's okay. Your play practice should be uniquely yours.

The bottom line: Play is self-care that actually works

We've been sold a version of self-care that involves bubble baths, face masks, and treating ourselves. And those things are fine. But they're not play.

Play is active, engaged, absorbed joy. It's not something you do to your body—it's something you do with your whole self.

And unlike most self-care advice, play is backed by decades of neuroscience, psychology, and biology research. We know it works. We know why it works. We know how much you need.

Play isn't a reward for getting your work done. Play is what makes you capable of doing your work well.

Play makes you more creative, more resilient, more connected, more healthy, and more alive.

Not someday. Not after you've earned it. Right now.

Ready to play again?

If you're reading this and thinking 'I want this, but I don't know where to start,' you're not alone. Most of us have forgotten how to play. We need structure, community, and permission to remember. That's why I created The Play Project.

Introducing: The Play Project

A 30-day challenge designed to help busy women rediscover play and bring joy back into their daily lives.

Starting on 1 June and for 30 days, you'll get:

• One simple play challenge (5-15 minutes)

• The science behind why it matters

• A journal prompt for reflection

• Community support from women on the same journey

You'll experiment with different types of play and discover what lights you up. You'll build a sustainable play practice that fits into your real life.

And you'll have science-backed proof that you're not wasting time. You're investing in your mental health, physical health, creativity, resilience, and overall wellbeing.

JOIN THE PLAY PROJECT NOW

It’s 30 days of 30 challenges. One commitment - to remember what joy feels like.

• Your brain will thank you.

• Your body will thank you.

• Your future self will thank you.

Because life is too short to spend it all being serious.

Let's play.

JOIN THE PLAY PROJECT NOW