Of course, the challenge is figuring out what tests to take when. Only your doctor can really tell you 100% (every individual is different in terms of risk factors and family history), but we can check out some general guidelines for health screenings (see Health Screenings for Women or Health Screenings for Men).
I like to think of health screenings as part of a disease prevention program. Preventing diseases (or catching them early) is probably the single best way to add years to your life expectancy. Make a plan today to prevent disease, get everything checked and feel good that you are doing everything you can for a longer life expectancy.