If you have any concerns with either or both of a heart attack or
stroke you may wish to consider upping your intake of
Vitamin C, and Vitamins D + K.
Also, for future reference, in case of heart attack,
one of the simplest things you can do is put a bunch of cayenne pepper
in a glass of water and chug it down, despite it's being
nearly intolerably "hot". It's really easy to carry around
a few gelatin-capsules full of cayenne pepper. Further, if
you have any issues with high blood pressure or artheriosclerosis,
you may wish to consider EDTA chelation... e.g. take sublingual EDTA nightly upon retiring,
and then immediately upon rising, to replace vitamins and minerals which are also chelated,
take sea salt for trace minerals, and Vitamin B supplements (and others).
If you're interested in factors affecting your heart's health, consider transdermal magnesium therapy as per International Health's unfortunately misnamed magnesium oil, contains absolutely no oil of any kind.