Blood has a few major metals - Iron, Magnesium, Sodium, Potassium, Calcium and Iron. Reduce heavier metals (sodium, iron) in your diet and you should be okay with blood pressure and anxiety. I have a higher than normal blood pressure (and anxiety) since my 20s.
Bananas are okay, nothing magical, speaking as a pretty good badminton player. Genetics is a big deal in athletics. You have to supplement whatever your parents didn't pass on to you.
Thank you! Probably sodium makes blood heavier and the heart has to work harder to pump it. I've had the same thinking about higher haemoglobin numbers (which I do, i am at too high HB for men) and I do suffer from borderline higher blood pressure since my adolescence (not to mention anxiety). Probably I should start taking more Magnesium to balance the minerals. Read somewhere on the internet that we need to balance the metals in our blood. Sodium, Potassium, Magnesium, Iron and Calcium lead to a healthy CVS system.