Ключевые слова: active, activity, adulthood, age, aged, aging, athletic, baby boomer, biceps, dumbbells, elderly, energy, exercise, fit, fitness, friends, generation, group, gym, gymnasium, gymnastics, health, healthcare, insurance, interest, leisure, life span, lifestyle, lifting, mature, old, pensioner, personal trainer, retired, retirement, selective focus, senior, social, social security, society, sport, trainer, training, up, waist, weight, wellness, workout,