Conversation: The conversation between human and AI assistant.
[|Human|] I am 80 yrs old. At 0600 this am my BP was 147/92 pulse 55. I went on a 55 miles bike ride ,avg 11 mph. Stoped for a good bkfast , drank 1 qt plus. BP 15 min after ride 89/55 pulse 77. Three hrs later BP 124/79 pulse 72. This situation has been happening even with shorter rides(but more intense) Temp today, sun & 78F. Im a bit worried.
[|AI|]  Hello, Thanks for the query to Chat Doctor. Forum. The Blood pressure is not too high, but the cause of concern is bradycardia (decreased pulse rate 55 / minute). 2nd time after breakfast B p was low. In my opinion this is not related to bike riding , but may be due to some heart ailment. 55 pulse / minute is an indication of cardiac failure, so please consult a cardiologist and get his opinion. Good luck.