Ключевые слова: age, average, background, business, button, change, concept, conditions, design, elder, expectancy, extension, graphic, increase, individuals, infant, infographic, keyboard, life, life expectancy, lifespan, longevity, misinterpretation, mortality, pension, people, period, person, plan, population, problem, proportion, retirement, senior, sensitivity, significantly, social, society, text, word,