happy retired senior man doing side stretching exercises with arm overhead during outdoor workout

60s active activity age aged arm athlete athletic bearded body cardio caucasian cheerful city elderly enjoying exercise exercising fit fitness handsome happy head headphones health healthcare healthy jogging leisure lifestyle listening male man mature morning motivation muscles music nature old older outdoor outside over park pensioner people person positive retired retirement runner senior smile smiling sport sportsman sportswear sporty stretch stretching strong summer training vitality warmingup warmup wearing workout