One of the biggest causes of "blood pressure" is being faced with a white coat for a routine medical; after a half hour drive in rush hour traffic.
After the first "diagnosis", of minimal increase, every renewal becomes a trauma !
I say this as a now over eighty year old who was still capable, until recently, of walking one hundred miles a week solo for fun.
Also the most relaxing thing I ever did in retirement was a long solo X/C to a friendly strip.
Oh, and once upon a time, it was expected that there would be a nominal rise in BP with age - there was a rule of thumb for it. You weren't an instant candidate for the knacker's yard !