The Quiet Erosion: How We’re Accidentally Trashing Our Own Brains
Sahil Bilal
There is a specific kind of silence you only find in a bedroom that has slowly turned into a bunker. It’s not peaceful. It’s the silence of a person who has been staring at the same four walls for so long that they’ve stopped noticing them. It’s the silence of someone who is, technically, studying – but hasn’t actually absorbed anything in the last forty minutes.
I know this silence very well. I’ve been sitting inside it for almost a year now.
I’m preparing for my entrance exam. Haven’t joined any college yet, haven’t left home for anything that isn’t absolutely necessary. My world, for the past twelve months, has been a desk, a stack of books, a laptop, and a phone that I keep telling myself I’ll stop checking so much. Every time a chapter gets difficult – and they get difficult often – my thumb finds the screen before my brain even registers what’s happening. It’s not choice anymore. It’s just what my hand does.
I’ve been thinking about this a lot lately. Not just the distraction, but what’s underneath it. Because I don’t think what’s happening to me – a lot of us grinding at home right now – is just “losing focus.” I think it’s something quieter and more structural than that. I think we’re slowly eroding the very thing we’re trying to use.
The Dopamine Loop: Why You Can’t Just “Sit Still”
Here’s the uncomfortable part that nobody preparing for an entrance exam really wants to hear. Your brain is shaped by you what you repeatedly do with it. Standford researchers have been sitting with this for years – it’s called neuroplasticity – and the basic idea is that the brain becomes whatever you train it to be. If you spend most of your day jumping between a textbook, three YouTube videos, a group chat, and Instagram, you are training your brain to expect constant switching. Constant novelty. A new hit of something every thirty seconds.
And then you sit down to solve a Physics problem that requires you to hold a concept in your head for five uninterrupted minutes, and your brain just…won’t. it’s not that you’re stupid. It’s that you’ve accidently trained it to be allergic to exactly the kind of thinking the exam is going to demand from you.
“We’ve become so afraid of boredom that we’ve filled every quiet moment with noise. But boredom is where deep thinking actually begins. Kill the silence long enough, and eventually you kill the focus in it.”
The worst part is that average attention spans among young people preparing this way have genuinely tanked – down to just a few seconds before the brain starts itching for something new. We’ve been training for speed when the exam needs depth. That’s a problem nobody’s revision timetable accounts for.
The Sleep Lie and What’s Actually Happening in Your Head
Somewhere along the way, staying up until 2 AM with a textbook became a sign of how serious you are about this. I’ve done it. A lot of us have. And we tell ourselves it’s fine, it’s temporary, it’s what this year requires.
But here’s what’s actually happening. There’s a process called the glymphatic system – your brain, during deep sleep, physically flushes out toxic proteins that build up through the day. Harvard sleep researchers have found that chronic stress and sleep deprivation destroy your REM cycle, which is exactly when this “cleaning” happens. When you cut your sleep to revise one more chapter, you’re not just tired the next morning. You’re leaving actual metabolic waste sitting in your brain, making it foggier and slower for the next session too.
Do that for weeks – or months – and it compounds. You start blanking on things you definitely revised. You read the same page three times and nothing sticks. It’s not a motivation problem. Your brain’s ability to consolidate memory literally depends on sleep you’re not giving it. We’re trying to build something solid on ground that keeps shifting.
The Pressure Nobody Talks About When You’re Preparing at Home
There’s a particular emotional weight that comes with this kind of preparation that I don’t think gets acknowledged enough. You’re not on a campus with other people going through the same thing. You’re at home, often alone with your thoughts, watching people your age post about their college lives, their trips, their results – and even when you know social media is a highlight reel, something in your brain doesn’t fully process that distinction. It reacts anyway. It registers it as: everyone else is ahead. You’re falling behind.
That kind of constant low-grade comparison activates the same neural pathways as physical pain. And to manage it, most of us do what feels like the only option: we suppress it. Push the anxiety down. Keep our head in the book. No room for feelings when there’s a syllabus to finish.
But suppressed emotion doesn’t disappear. It converts. It turns into a kind of burnout so quiet you almost don’t notice it until you’re sitting at your desk one afternoon, starting at a chapter you actually care about, and feeling absolutely nothing. Hollow. Like you’ve been running on fumes for so long that the last tank is just empty. The amygdala stays stuck in red alert – jumpy, exhausted, constantly braced for the next thing – and actual learning becomes nearly impossible when your brain thinks it’s in survival mode.
The Body You’ve Been Ignoring
It’s easy to forget you have a body when your entire existence has compressed into a chair and a screen. I know what it’s like to realize at 9 PM that you haven’t been outside since yesterday. To survive entire days on chai and whatever biscuits are on the desk. To tell yourself you’ll exercise after this chapter, and then after the next one, and then it’s midnight.
There’s a protein called BDNF – think of it as fertilizer for your brain. Your body produces it when you move. When you walk somewhere, when you get outside, when you’re physically in the world rather than just in your head. Without it, the brain stagnates. Neural connections don’t grow the way they need to. Which is why sometimes you can sit with a concept for an hour and feel like it has made absolutely no impression – your biological hardware is running on low battery because you haven’t moved, and it literally cannot do what you’re asking it to do.
Twenty minutes of walking isn’t procrastination. It’s maintenance. There’s a difference
So Why Are We Actually Doing Here
I want to be clear: this isn’t a piece about giving up or slowing down. The exam is real, the competition is real, and the stakes feel enormous – because for a lot of us, they are. I’m not going to pretend otherwise.
But I think there’s something worth being honest about. If we reach that exam hall with a brain that’s fragmented from months of sleep deprivation, physically depleted from sitting still, emotionally hollowed out from suppressed anxiety, and trained by constant scrolling to avoid anything that requires sustained effort – then all the hours we logged don’t mean what we think they mean. We can’t pour from an empty vessel. And we cannot think clearly with a brain we’ve been quietly dismantling all year.
We have to learn how to actually rest. Not just sleep-when-exhausted rest, but real, deliberate rest. We have to move. We have to let ourselves be bored sometimes without immediately reaching for a screen. We have to give the brain the conditions it actually needs to do what we’re asking it to do.
The real exam, in some ways, isn’t the one on the date printed on the admit card. It’s whether we can protect our ability to think clearly long enough to actually get there.
We have to win that one first.
(The author is an award winning emerging author, and can be reached at [email protected])
