Alpine,
Do you know exactly what the extrasystoles condition is and is it temporary? Also wondering what magnesium is designed to "help" -- curious because I've had a few incidents similar in nature (few and far between, never consistent) and I've seen products such as "sportlegs" on the market that are basically calcium and magnesium, to be taken prior to a sustained workout or as recovery help.

I take a multi which has magnesium in it but curious if you know the way it works taking it as a supplement....time to visit Dr Weil's site....