My Brain Has Left the Chat: A Personal Guide to Multitasking-Induced Burnout

Confession: I used to think I could multitask like a pro. Like some kind of cognitively enhanced octopus with a PhD and a Google Calendar fetish. I’d be replying to emails mid-slicing the brain, reading journal articles while meal-prepping protein oats, texting three different people about attachment theory, and still thinking, “Wow. I’m thriving.”

But recently, something shifted. I started feeling it.

The burnout.
The brain fog.
The visceral hatred toward anyone who says “quick sync?” at 4:58 PM.

My mind, once a sparkling neuron disco, is now a flickering fluorescent lab light. I have tabs open on my laptop and in my soul. And the science? The science says I’m not special. My brain is not multitasking, it’s task-switching. Badly.

Jibber-jabber: your prefrontal cortex is the manager of your mental operations. Executive function? That’s all her. She’s overworked, underpaid, and hates when you force her to jump from writing a manuscript to checking DMs to filling out a google calender schedule for next week experiments in the same 10-minute window. 

That cognitive flip-flopping? It costs time, energy, and brain glucose (Monsell, 2003). Like trying to solve a Rubik’s cube while a fire alarm is going off and someone’s asking you to smile more.

We call this “switch cost,” and it’s not just a productivity killer, it’s a slow neurochemical betrayal. Every switch makes your working memory trip over itself like it’s wearing Crocs to a sprint. You make more mistakes (Rubinstein et al., 2001). You forget what you were doing. You stare at your pipette like it owes you money.

Let me be clear: multitasking is not a skill (I myself, used to flaunt it in my CV). It’s a delusion wrapped in a dopamine cycle. You get a tiny reward every time you start a new task and your brain eats it up like stale lab cookies. Over time, this fragmented attention rewires your neural pathways toward distraction. (Ophir et al., 2009)

And the real kicker? This constant state of attention-splitting doesn’t just make you worse at thinking it actually changes your brain. One study (Loh & Kanai, 2014) found that chronic multitaskers had reduced grey matter in the anterior cingulate cortex, the part of your brain that helps with cognitive control and emotional regulation. So yes, that impulse to cry because your email didn’t load? 

Not just vibes. It’s structural.

I once tried to sort behavioral data from a migraine trial, stir veggies for my noodles in a pan, talk to my bestie on speakerphone, and read a screenshot of a book talking about How Boredom Is Important courtesy of my handsome Austrian man. In that 15-minute act of supreme overconfidence, I sent the wrong graph to my PI, told my bestie I was “experimentally bored,” and burned the veggies into something resembling industrial waste. I am now banned from multitasking. And maybe from using the stove.

So what do we do?

• Cut the crap. Do one thing at a time. Your neurons will thank you.

• Reclaim your attention like it’s a grant you might actually get.

• Put your phone in a drawer. Or yeet it into the sun.

• Schedule deep work blocks where you pretend it’s 1996 and the only distractions are your own thoughts (terrifying, I know).

Message to myself: Multitasking isn’t noble. It’s neurotoxic. Stop pretending your brain is a 16-core processor, it’s a weirdly squishy organ trying its best. Let it focus. Let it rest. Let it do one thing at a time, beautifully, like the glorious prefrontal diva she is.