Ключевые слова: aging, alzheimer, anatomy, brain, care, caucasian, confusion, degeneration, depression, disease, disorder, distraught, forget, head, health, home, ideas, illness, intelligence, loneliness, losing, loss, memory, memory loss, mental, mind, neurology, old, problem, problems, psychology, puzzle, remember, retired, retirement, sad, schizophrenia, thinking, together, wisdom, worried,