Cortisol, Stress, and Weight Gain Claims

Cortisol is often presented as the hidden reason behind weight gain — especially in times of stress. But the relationship between stress, hormones, and body weight is more complex than it first appears.

This episode explores how research approaches cortisol and weight, including differences in measurement, study design, and individual responses. You’ll hear what systematic reviews and meta-analyses suggest about stress, eating behaviours, and body fat — and where findings remain mixed or limited.

It also looks at how rare medical conditions differ from everyday stress responses, helping clarify what kinds of effects are well established and which are not.

Listen to the episode and explore the full evidence and clarity poll in The Evidence Edit.