Are there any other people in your family that have had strokes? If not, it could just be him. Once you have one stroke you are much more likely to have another stroke-- I believe there is solid research on that. So a person having 3 strokes is not necessarily uncommon “if” they keep surviving the strokes. Also if you don’t know if your grandfather’s true health history (blood work) then hard to make assumptions.
I think the reason doctors are wishy-washy about what could affect blood pressure is because it is not really known based on what your lifestyle is…which is an active, healthy one. Blood pressure can vary throughout the day and depending on when you slept, ate or ect. You are looking for hard research but there really is none. I’m not sure what they could say to you because you can go online (like forumosa) and find 10 people who will find reasons why it is not right.
Supplements also are up for debate even if you believe that the main ingredient works. It is debatable of how much of that supplement you actually “absorb”.
It is much better to ‘try’ to do things with a balanced diet and exercise. But again genetics trumps all.
We have not even talked about “stress”. Stress also can cause high blood pressure. Talking while someone takes your blood pressure could also increase it.
The best preventative medicine is exactly what you are doing now…just eating well and exercising.
I remember you are tall? there was always the idea that taller people ‘in general’ die younger…as there any studies on this and if so why was it the case?