Ключевые слова: 40s, activity, adventure, adventurer, adventuring, athletic, blue sky, caucasian, chest, countryside, cross country, environment, exercising, exploration, fit, fitness, healthy, heart rate monitor, jogging, leisure, lifestyle, male, man, mature adult, mountain exercise, nature, outdoors, outdoorsy, path, pulse trace, recreation, scenic, shirtless, strap, summer, summertime, sunny, sunshine, track, trail, training, wearing, wilderness, working out,