The best ingredient for performance and longevity is probably already in your kitchen

A cup of coffee contains complex compounds that can boost health, performance, and longevity simultaneously. Catherine Falls Commercial/Getty Images Coffee is a major source of disease-fighting nutrients for millions of Americans daily. Research suggests that coffee can boost performance and help fend off age-related illnesses, such as cancer. For best results, pay attention to the amount, timing, and ingredients added to your coffee. The fountain of youth could be as close as your neighbor...