Why rewatching your favourite shows is actually good for your brain

These days, we spend much of our lives juggling new information, making countless decisions and preparing for whatever comes next.

It makes sense that our brains naturally want the comfort of a story we already know well.

When we revisit our favourite things, we’re not just looking for entertainment; we’re giving our minds a chance to reset.

Rewatching helps us manage our emotions by releasing dopamine in our brains and offering the calming predictability that can ease anxiety. 

​This article explores the science behind why our "comfort shows" are more than just a guilty pleasure; they are a vital resource for our mental well-being.

​Familiarity breeds comfort

There’s a reason why we gravitate toward the familiar during times of stress.

Psychologists call it the mere exposure effect, a phenomenon where repeated exposure to something increases our liking for it.

Essentially, the more you’ve been exposed to a show, the easier it is for your brain to process it. This “perceptual fluency” not only enhances our enjoyment but also creates positive emotions.

​When life feels chaotic and unpredictable, rewatching an old favourite offers a sense of control.

You know how the story unfolds, what the characters will say, and that there won’t be any shocking plot twists waiting to throw you off balance. That predictability is like a warm hug for your brain, grounding you in a moment of certainty even when everything else feels uncertain.

Nostalgic journey through time

Rewatching a show can be like stepping into a time machine. It’s not just about the episodes; it’s about revisiting who you were when you first watched them.

That sense of nostalgia can transport you to simpler, happier times.

​Remember the first time you laughed at Friends or cried during the finale of "Two Broke Girls"?

Tuning in again allows you to reconnect with those memories, offering a comforting reminder of how far you’ve come while reliving the joy of those moments.

Nostalgia, studies show, has a powerful impact on our emotional well-being, helping us feel more connected to ourselves and our past.

​The calming effect of predictability

Have you ever felt too mentally drained to even think about starting a new show? You’re not alone.

According to CNBC, the average adult makes about 35,000 decisions a day. By the time you’re ready to unwind, those decisions can feel like an unbearable weight.

That’s where rewatching comes in. Familiar shows require little mental effort to follow, giving your brain a much-needed break from constant processing.

Psychology notes that revisiting beloved characters and storylines is like spending time with old friends. 

"They’re always there for you, doing and saying the same things in the same way, offering a kind of companionship that’s predictable and reliable." 

This predictability not only reduces cognitive load but also creates a safe, controlled environment.

Emotional comfort and dopamine

Rewatching your favourite shows also taps into the brain’s reward system. Engaging with enjoyable, familiar content triggers the release of dopamine, the “feel-good” chemical.

This natural high helps boost your mood, making rewatching an excellent form of self-care.

And it’s not just about happiness. Studies have shown that familiar TV shows can restore a sense of self-control and willpower, especially when you’re feeling emotionally depleted.

They provide a kind of emotional sustenance, reminding you that it’s okay to just be for a while.

Background noise

Sometimes, it’s not even about actively watching. Having a familiar show on in the background while you cook, clean or scroll through your phone can create a sense of companionship.

That ambient familiarity can make even mundane tasks feel a little less lonely.

While rewatching your favourite shows offers undeniable benefits, it’s essential to practise moderation. Like any form of self-care, it can become counterproductive if it’s used to avoid responsibilities or emotional challenges.

Instead, think of it as a tool in your wellness arsenal, a way to recharge, reconnect, and find calm amidst the chaos.

They’re a form of self-care, a mental escape, and a reminder that even in the messiness of life, comfort is just a “play” button away.