Shower control set to "hot"On his shared TikTok account, app user Micah – from the couple’s channel Micah & Sarah – shows himself standing over a stove, cracking his neck like a nervous boxer.Wincing, he eventually psyches himself up to dip a hand into the pan of water burning before him. “Training so that I can one day take a shower with my wife,” the video’s text overlay reads. Differences in bath (or shower) heat tolerances between men and women are commonly joked about. But are they real – and if so, why? Thankfully, NHS surgeon, author, and lecturer Dr Karan Rajan has answers.@mic