The CDC recently released a 50 page article entitled, "The State of Aging & Health in America 2013:"
For those who want to save some time here's a brief summary:
Get Screened (when clinically appropriate)-less than half of men and women aged 65 years or older are up-to-date on preventative services
Be Physically Active
Eat Fruits and Vegetables Daily
Take Medication for High Blood Pressure if needed