Conversation: The conversation between human and AI assistant.
[|Human|] I am 73 yrs old. Used to be an athelete, but not trained for a year or so. With tabs my BP is average 140/80. My pulse is average 45, resting or after a brisk walk. No symptons except very fatigued on little work. Any help appreciated. Peter Cuthbert
[|AI|]  Hi, Regarding your concern, I would explain that the low heart rate could be related to the fact that you have been an athlete. Anyway, I would recommend performing a cardiac ultrasound and a resting ECG in order to examine your heart function and structure.  It is also advisable performing some other blood lab tests in order to investigate for the possible causes underlying chronic fatigue (complete blood count for anemia, thyroid hormone levels for thyroid gland dysfunction, blood electrolytes, Vitamin B12 and vitamin D plasma levels).  Hope I have answered your query. Let me know if I can assist you further.