Sweating, he says, is part of the thermoregulation process. When your body temperature rises, it signals to your brain to sweat in order to cool you down. As the sweat evaporates, it helps regulate your core temperature. One reason temperature rises is exercise. When we exercise, the energy we produce to fuel that activity creates heat as a byproduct, says Collins. The more intense the workout, the more heat is generated and usually, the more you sweat.
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."