<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi - my heart rate is typically in the 60-80 range. Lately it has been in the 50 - 60 range. No lifestyle changes. I am on the treadmill or bike 3-4 times a week and work out with light weights 3x week for 12 hour at a time. All other health items are ok. I am 67 and my blood pressure has been ok. Weight is normal. I take blood pressure and cholesterol medicine. Any ideas?  <response>: Hello, As I start I would like to reassure you that your pulse rate is perfectly normal, and rather its best to have pulse rate between 50-60. The reasons may be 1 normally as we age the pulse decrease because metabolism of our body slows down .2 As you are active, the heart is well-trained and hence the pulse would go low as such heart can effectively pump more blood with each heart beat 3 many medications for hypertension particularly beta blocker can decrease the pulse rate. Its just prudent to keep a tab on the pulse rate by doing ECG once in 6 months to make sure that the rhythm is normal. Let me know if any clarification needed, and I would be happy to help. Regards Chat Doctor. 