Weight Loss
Why Sleep is the Missing Piece of Weight Loss
Jun 03, 2026
Diet and exercise matter, but poor sleep can undo all your hard work.
The Sleep-Weight Connection
Research consistently shows that people who sleep fewer than 7 hours per night are significantly more likely to be overweight. Here's why sleep deprivation sabotages weight loss:
Hormones Out of Balance
Poor sleep increases ghrelin (hunger hormone) and decreases leptin (fullness hormone). You feel hungrier and eat more, especially high-calorie foods.
Cortisol and Fat Storage
Sleep deprivation raises cortisol levels, which signals your body to store fat — particularly around the abdomen.
Energy for Exercise
Without adequate sleep, you won't have the energy or motivation to exercise, further sabotaging your efforts.
How to Improve Sleep Quality
- Consistent bed and wake times
- No screens 1 hour before bed
- Cool, dark bedroom
- Avoid caffeine after 2pm
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