but in quite subtle ways that we don't really tend to think about. it's not food, but it is the number of dishwashers sold. it is the number of washing machines. it is the number of cars. and if we count up the number of calories from those activities through our everyday life, so that's walking up and down stairs, washing the dishes, that's about 110 calories. now, 110 calories is half a mars bar. so if i was to eat half a mars bar a day without changing anything else and came back in 12 months time, do you think i'd be bigger? well, likely, yes. but the important 