Traitors Alan Carr: Why talking about sweat stopped being a taboo

Let's talk about sweat... From contestants on The Celebrity Traitors and scores of celebrities openly discussing it, to the trend of professionals using saunas for business meetings

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Alan Carr's days on The Celebrity Traitors looked perilous from the start. Just 32 minutes into the first episode, after the comedian had been selected as a "traitor", his body started to betray him.

Beads of sweat began forming on his forehead, making his face shiny. "I thought I wanted to be a traitor but I have a sweating problem," he admitted to cameras. "And I can't keep a secret."

Professor Gavin Thomas, a microbiologist at the University of York, was watching the episode. "[Alan] does sweat a lot - and it looks like eccrine sweat," he says, referring to a common type of sweat, which comes from glands all over the body that can be activated by stress.

Yet it was Carr's willingness to talk about his sweatiness - and the excitement of viewers who were quick to analyse it on social media - that was most striking of all.