Losing weight is an obsession for many people. Women, in particular, compare their bodies when they were young with what they look like now after having children, which is also linked to the low self-esteem crisis that many face in such situations.
It's important to realise that losing weight is not a bad thing in itself. There are many important benefits to maintaining a healthy weight for your body, including a reduced risk of weight-related health problems, which are often fatal.