Ключевые слова: athlete, bonding, boy, brother, cardio, child, children, city life, elementary age, exercise, family, fitness, forest, girl, guy, happiness, healthy, jogging, kid, laughing, lifestyle, little, modern, outdoor, park, person, preadolescent, race, run, running, setra, sibling, sister, sports, starting, street, summer, team, teen, teenagers, together, track, track and field, training, treadmill, twins, two, urban, wellbeing, young,