It's time to make a difference in our own lives. Our retirement can last 20, 30 years or even longer. The number of octogenarians in this world, those reaching 80-89 years of age, is now the norm. The chances of becoming a nonagenarian, those reaching 90-99 years of age, is on the cards. Life expectancy is increasing across the world, and the world population has also increased rapidly, the number of Centenarians is expected to increase quickly in the future.