In 1988 my DH had stress test, they started it and shut it down at 33 seconds. Sent him home with meds, said do nothing over the weekend , this was late Fri afternoon. He had open heart surgery with 5 to take care of the 10 blockages he had. 13 yrs later, he had it again, then he had aortic anyursium surgery, same type of surgery as the bypasses, craking the chest, then 2 yrs ago had valve repairs, and today he is having abalation and they just came out and said he is also getting a pacemaker. He is 71. He has had such a time, he actually was having his heart just get slower and slower. His My husband the first time BP was like 65 over 40. So I hope this gets him some energy. I think that every man at least should have a stress test around 46-48 yrs. old. It just seems that is when they have heart attacks, my DH was 2 weeks from a massive coronary. Get those stress test. Nothing shows as well