Thanks to marketing and social media, running classes are presented to girls or aunts in the form of glamorous sneakers, long-sleeve hoodies (a hoodie and a t-shirt with sleeves are not fashionable), motivating selfies with the obligatory pathetic captions in English, and training in a party format. Plus a perfect figure, because everyone knows that running makes you lose weight and your legs grow from your ears. And you, so beautiful, strong and unstoppable, fly towards the dawn with a spiritual expression on your face... Of course, you can't say that all this is not true - rather, only a glossy part of the truth. As always, there is a flip side – less appetizing?