40-45, 40-50, 40's, 40s, 45-50, 50-55, 50-60, 55-60, adult, associate, cheerful, clip board, clip-board, colleague, color, colour, confidence, control, daylight, daytime, delighted, doc, enjoyment, equipment, expert, fellow, fifties, fifty, forties, forty, general practitioner, gentleman, glad, gratifying, gray, grey, grey hair, guy, hair, happy, hardy, head & shoulders, health-care, healthcare professional, healthcare worker, healthy, human, human being, indoor, inside, jolly, joy, lighthearted, male, md, medic, medical care, medical equipment, medical science, merry, mid life, middle age, middle aged, middle eastern, middle-age, middle-aged, negative space, one, person, physician, pleasing, pleasure, portraiture, positive, power, responsible, satisfaction, self-assured, smile, sunlight, sunshine, vitality, well-being, white coat, white space,