a hand

adult adulthood age aged ageing aging alzheimer ancient arm body caucasian centenarian close closeup crease cutaneous cutis degradation detail details disease eighties elderly female finger fingers geriatric gerontology grandma grandmother granny hand hands health healthcare human illness index isolated life lifespan lifestyle lines longevity mark mature maturity nail ninety nonagenarian octogenarian old oldness part people senescence senior shrinkage sign skin thumb up woman wrinkle wrinkles wrinkling