Unfortunately my brother did not have early detection. I believe he started having symptoms over a year before he was diagnosed. We had a family vacation at the beach - he was always a jogger but that summer wasn't jogging anymore because he was too winded. Because he had no risk factors (never smoked, worked in an office), I believe his symptoms were never taken seriously until it was Stage IV, even an xray taken before he was diagnosed did not show the cancer though undoubtedly it was there. Better screening, go for it. . .