Mental wellbeingEvidence-basedLesson 28 of 32

Stress, cortisol and cravings

Chronic stress reshapes appetite, fat storage and blood sugar — and it responds to simple daily practices.

4 min+20 XP

The cortisol loop

Cortisol mobilises glucose for a short-term threat. When stress never resolves, glucose stays elevated, insulin rises and the body preferentially stores visceral fat around the organs.

Why comfort food is chemical

Stress increases reward sensitivity to sugar and fat while weakening the prefrontal control that would normally pause you. This is physiology, not weak willpower.

What actually lowers it

Slow breathing (about 6 breaths a minute for five minutes), daylight exposure, regular movement, social contact and sleep are the best-evidenced everyday cortisol regulators.

Key takeaways

Chronic cortisol favours visceral fat storage.
Stress cravings are a reward-system change, not weakness.
Slow breathing, daylight, movement and sleep reduce it.

Check your understanding

1 question · answer to earn XP

1. Where does chronic cortisol preferentially drive fat storage?

Evidence & sources

This lesson reflects guidance from recognised health bodies and peer-reviewed research.

For education purposes only — not intended to diagnose, treat or replace medical advice.