Group 1 - The article highlights the growing trend of fitness enthusiasts engaging in extreme physical activities, such as trail running, hiking, and cycling, as a way to challenge themselves and escape the pressures of urban life [1][15][24] - It emphasizes the psychological benefits of these activities, including the release of BDNF (Brain-Derived Neurotrophic Factor), which enhances cognitive function and helps individuals cope with stress [5][12][26] - The fitness community shares a unique bond through their experiences of hardship and achievement, often using physical challenges as a form of social currency [6][27] Group 2 - The article discusses the concept of "embracing hardship" in fitness, where individuals willingly push their limits to gain a sense of accomplishment and mental resilience [8][18][33] - It notes that fitness enthusiasts often engage in rigorous training schedules despite their demanding work lives, viewing exercise as both a stress reliever and a source of energy for their professional responsibilities [10][11] - The narrative also touches on the importance of scientific training and listening to one's body to avoid injuries while still pursuing challenging workouts [29][31][32]