The mechanism, plainly
Cortisol is useful in a crisis and costly as a lifestyle. When it stays high for months, your body stores energy around your organs, which is the belly fat that matters for health, and it turns your appetite up at the same time.
The second route: behaviour
Stress eating and stress drinking are not character flaws. They are tools that turn the volume down for ten minutes, with a bill attached. The fix is giving your nervous system other ways to come down during the day, so the evening does not arrive like a cliff edge.
What helps in a real week
- A walk after meals.
- Training that lets your body complete the stress response.
- Slow breathing before you walk through the door.
- Sleep, because a short night raises cortisol the next day by itself.