By 2030, the number of Americans age 65 and over is projected to reach some 71.5 million people, and nearly 10 million of them will be age 85 and older. Today, many seniors report better health, greater wealth, and higher levels of education than seniors in past decades. Science is paying a lot of attention to the well-being of people in their later years. One area of concern is cognitive function, with dementia and Alzheimer’s studies paving the way. Physical health is another big topic for the aging population; keeping the body moving and healthy will help ensure the quality of a long life. Meanwhile, some elderly folk aren't even retiring, they're staying in the workforce and contributing to society well into their golden years. Adding to this richness, more and more young people are turning to their elders for advice and wisdom about all domains of life. Research on how to stay active and sharp is indeed proliferating—it's up to us to act on the information now.