Calcium vs. Magnesium

The 100th Indianapolis 500 was run on Sunday. A relatively unknown rookie, Alexander Rossi, won the race. Based on sports news reports, there were more lead changes and more position changes than in many Indy 500s. With 33 cars and drivers, changing track conditions, accidents, bumps, spins, and pit crews, the number of variables that contributed to the win by one driver and the loss by all the rest are too numerous to even try to attempt to calculate. Anyone who says they can do it is delusional.

What does this have to do with calcium and magnesium? There are . . .

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