By 2030, the number of Americans age 65 and over has been projected to reach about 71.5 million, and nearly 10 million of them are age 85 and older. The good news is that many seniors report better health, greater wealth, and higher levels of education than seniors in past decades. Some elderly folk aren't even retiring, they're staying in the workforce and contributing to society well into their golden years. More and more, young people are turning to their elders for advice and wisdom on all domains of life. Research on how to stay active and sharp is proliferating—it's up to us to act on the information now.