Let's be clear - i have no problem with people taking pride in their achievements - whether running a marathon, losing weight (which I have done recently myself) etc
They deserve our support, especially when said achievement/new exercise regime/training schedule is against a backdrop of struggling with weight/fitness etc.
That's not what I am talking about here. No, it's those people - who usually have always enjoyed exercising, who find keeping fit or slim a piece of cake (!) and who bang on endlessly about their regime and how superior it makes them to us couch potatoes.
I know it's important for health and I do my best to exercise regularly but I find it marginally less exciting than watching paint dry. It doesn't help at all to have endless postings on social media of how "a fit body = modelling excellence as a parent" and other smug, self-congratulatory nonsense.
Alongside posed pictures of the "yes, I know I look good. Aren't I lovely?" Variety.
Most of the time the individuals concerned are perfectly nice human beings in every other way. How can they not see how irritating this is?