08/06/2026
"What does your brain think is normal?" Change the cue to change the habit.....then reinforce it again and again and again and again.
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It's 9pm. You walk into the kitchen. You're not hungry, not upset, not celebrating. You're just there. And before you've really decided anything, your hand is in the cabinet, eating something you swore you were done with.
The next morning you promise to be more mindful. The next night, it happens again.
We call this self-sabotage, or weak willpower. It's neither. It's a loop.
In a now-famous MIT experiment, rats learned a maze so well their brains went quiet in the middle, staying active only at two points: the cue at the start and the reward at the end. The behavior in between became automatic. Your brain does the same thing. Cue, behavior, reward. Walking into the kitchen is the cue. The snack is the reward. Everything between runs on autopilot.
Here's why this matters for weight. Losing weight doesn't erase your old loops. It just layers a new behavior on top, temporarily. The original cue is still there, waiting. And your brain, built for efficiency, eventually takes the familiar path. People don't slip. Their brains revert to the most practiced version of normal.
The fix isn't erasing the habit. It's keeping the cue and changing what comes next. Walk into the kitchen, pour a glass of water instead. Then reinforce it: "that's more like me." That quiet line is the reward that teaches your brain the loop has changed.
This is part three of a four-part series on why the weight comes back.
Read it below ποΈ
Share this with someone who keeps ending up back in the same nightly routine they swore they'd quit.