Is blocking sweat harmful?

We haven’t always suppressed our sweat or our natural body odour, but in many cultures now it’s expected we’ll all try to smell our best.

You might be seeing more ads for ‘natural’ deodorants that promise to keep you fresh without any harmful ingredients.

Norman and Tegan talk through those ingredients, and whether they carry any risks.

This episode first aired on March 19, 2025. 

References:

• The specific biochemistry of human axilla odour formation viewed in an evolutionary context
• Use of Aluminium in Antiperspirants - Australian Department of Health
• Antiperspirants/Deodorants and Breast Cancer - National Cancer Institute
• Antiperspirants - National Kidney Foundation
• How Advertisers Convinced Americans They Smelled Bad - Smithsonian Magazine