So many times I hear about friends “falling off the wagon” with their diets, about people for whom one drink with friends turned into a couple of bottles of wine, and a kebab, and then pizza for the hangover. About someone having a treat, like a slice of cake, then the whole cake then…despair and self-hatred. About someone very disciplined having to attend a social or work function, having very few healthy options and therefore going face first into the buffet with a “side order of chips please”. A moment of pleasure followed by days being wracked with guilt. I see it within exercise too, constant comparing to others, telling ourselves that we should have done better, or more, or faster.