You come home from work exhausted. Too wiped out to do anything that requires effort. Yet somehow, you still have energy to scroll through your phone for an hour.
What's going on here?
The Hidden Cost of Decisions
Most knowledge workers make hundreds of decisions every day. Which email to answer first. How to phrase that Slack message. Whether to push back on that deadline. Which meeting request to accept. What to prioritize when everything feels urgent.
Each decision, no matter how small, depletes your mental resources. Psychologist Roy Baumeister calls this "decision fatigue." Your brain runs on a finite energy budget, and by 5pm, you've spent most of it.
But here's what most people don't realize. You're not just tired from the decisions you made. You're exhausted from the decisions you're still making.
The Phantom Energy Drain
After you close your laptop, your brain keeps working. You're mentally rehearsing tomorrow's presentation. Running through your to-do list on repeat.
These aren't just annoying thoughts. They're active processes burning through your remaining mental energy.
It's like leaving your car running in the driveway all evening. The engine's still going, fuel's still burning, but you're not going anywhere. You're just depleting the tank.
This is why you can feel too exhausted to play with your kids or have a real conversation with your partner, but you still have energy for passive scrolling. Scrolling doesn't require decisions. It doesn't demand anything from your already-drained cognitive reserves. You just get lulled into that mindless swipe upwards.
Try This Tonight
Before you settle into your evening, do a quick energy audit. Ask yourself these three questions:
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What work thoughts are still running in the background right now?
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What's one thing I'm planning to do tonight that will actually drain me? (Sometimes it's saying yes to plans you don't have energy for)
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What's one small thing that would genuinely recharge me?
Then make one tiny commitment. Not a huge change. Just one small decision that respects your actual energy level.
Maybe it's saying no to that optional call. Maybe it's taking a 10-minute walk instead of immediately sitting on the couch. Maybe it's having a real conversation instead of parallel scrolling with your partner.
Small commitments. Real impact.
The Bigger Picture
You can't create more hours in your evening. But you can create more usable energy in the hours you have.
This isn't about hustling harder or being more productive. It's about being strategic with a limited resource. Your mental energy is precious. Where you spend it matters.




