I was diagnosed with Wolff-Parkinson-White syndrome in my early 20's. The diagnosis was from a ECG, the abnormal ECG correcteditself under a stress test, and I have never experienced any of the symptoms associated with this syndrome. However, I am at 53 about to undertake a serious physical fitness program, to combat bone lose. I am not sure if WPW is a static condition, or one that can vary over time. Should I be retested for WPW, and should the severity of that syndrome be rechecked if still present, through the same controlled exercises on a treadmill that I did 30 years ago, prior to undertaking a course to improve my overall fitness. I am concerned that I might cause some degree of embarrassment to my trainer, were I to experience sudden death.