There is no trick to living a long, healthy life. It's all about taking care of yourself. Eating healthy foods, exercising, watching weight, and eliminating unhealthy habits like smoking and excessive drinking are good habits for good health. Sometimes, in spite of all the best efforts, health problems can arise.
While eliminating all health problems is not possible, it is often possible to treat them successfully if developing conditions are detected early. These tests are highly recommended by doctors for women over 40 and 50.