<s>[INST] I am 50. Past  five years I am regularly doing exercise. I found my Heart BPM was 220 at the 5th stage of Tread Mill Test. But I didn't face any pain. It was about 170 BPM till 4th stage of TMT.Even two years back I tested my self and the BPM was 210 during the 5th stage.Suggest is it ok or I have to further examine. [/INST] Hi,You shouldn't worry, there is no need for further examination at this stage. But I would advise you to avoid exercises during which your heart rate goes above 180 BPM.Hope I could help youWishing you good healthIn case of further questions don't hesitate to askRegards, </s>