What your body odour says about you

Описание: 00:00 - 02:18 Introduction
02:18 - 03:06 Katie and Dan react to TikToks
03:06 - 05:36 Can chlorophyll help with body odour?
05:36 - 07:35 What is sweat made of?
07:35 - 10:30 Fish odour syndrome
10:30 - 18:15 Ask the Expert
18:15 - 31:43 Pheromones
31:43 - 34:57 What to do about body odour
34:57 - How deodorants work

Body odour has a reputation problem. It is often treated as a hygiene failure or a social offence. In reality, it is biology at work, plus a big helping of culture.

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Most body odour is not produced by sweat itself. Sweat is largely odourless. Smell develops when bacteria (and sometimes fungi) on the skin break down compounds in sweat and skin oils, producing pungent byproducts. That is why odour is often strongest in warm, moist areas with lots of sweat glands, such as armpits, feet and the groin. It is also why two people can smell very different after the same workout. Their skin chemistry and microbiomes differ.

In our latest episode of Strange Health, we spoke to Mats J. Olsson (https://ki.se/en/research/research-ar..., Professor of Experimental sychology at the Karolinska Institutet in Stockholm, who studies how humans perceive body odour. One of his key points is easy to forget in a deodorant-saturated world: humans have the anatomy of a species built to smell. We have sweat and sebaceous glands in “strategic” places, and we have a sense of smell capable of picking up subtle cues. But in modern life we also wash frequently and layer fragrances, which can mask those cues.

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