If you don't mind my asking, have you been diagnosed with bradycardia? According to my Apple Watch my RHR is 40, but I don't think that's unusual.
However, an 81 year old with an RHR of 26 IS unusual:
>>>Super-fit Daniel Green, 81, could not believe it when medics said his heart rate had dropped to just 26 beats per minute - lower than Sir Bradley Wiggins and Mo Farah at rest, 35bpm and 33bpm respectively.
Mr Green was having a check-up when doctors said his resting rate was 36bpm but dropped to 26 - lower than the world record.<<<
Daniel Green, from Surrey, has an average resting heart rate of 36 beats per minute but it drops as low as 26bpm - the current world record is 27bpm.
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