Boris Johnson perhaps gave the most emotionally intelligent speech of his life when he tearfully explained how obesity nearly killed him when he was hospitalised with Covid. “When I went into intensive care,” he said, “when I was really ill, I was way overweight … and, you know, I was too fat,” he explained in a Twitter video. “I’ve always wanted to lose weight for ages and ages and like many people I struggle with my weight, I go up and down. But since I recovered from coronavirus, I have been