Ключевые слова: 80, 90, adult, aging, and, balding, bed, cancer, caucasian, closeup, color, concentration, face, father, fragility, geriatrics, grandfather, gray, graying, hair, hand, head, healthcare, horizontal, hospital, human, illness, image, lifestyles, male, man, mature, medicine, men, old, one, only, patient, pensive, people, person, pillow, plus, process, resting, sadness, science, senior, sleeping, years,