2, 40-45, 40-50, 40's, 40s, 45-50, 50-55, 50-60, 55-60, 60-65, 60-70, 60's, 60s, 65-70, 70-75, 70-80, 70's, 70s, 75-80, adult, ageing, appointment, care, chatting, check-up, cheerful, color, colour, communicating, communication, computer, connecting, connexion, conversation, conversing, daylight, daytime, delighted, dialog, dialogue, discussing, displaying, doc, drug, e-book, e-reader, elderly, electronic book, electronic reader, elevated view, enjoyment, examination, exhibiting, fellow, fifties, fifty, forties, forty, general practitioner, gentleman, glad, gratifying, guy, happy, head & shoulders, health, health-care, healthcare professional, healthcare worker, hearing, high angle, human, human being, indoor, inside, invalid, joining, jolly, joy, lifestyle, lighthearted, listener, male, maturing, md, medic, medical care, medical examination, medical science, medication, merry, mid life, middle age, middle aged, middle-age, middle-aged, old, paper, person, physician, pills, pleasing, pleasure, prescription drugs, retired, satisfaction, seated, senior, senior citizen, seventies, seventy, sixties, sixty, smile, speaking, tablet, tablet computer, talker, two, western european, wireless, world wide web,