It’s awkward: it seems like you can put pounds onto your weight almost overnight but when you come to lose those pounds again it’s never as fast. Weight loss seems tilted in favour of gaining weight much more than losing it.
One of the reasons for that is historic. Until very recently, we never had access to a constant supply of food at almost every turning. So we adapted to conserve any excess calories and store them as fat in case our next meal was nowhere to be found.
That survival instinct has turned against us!