>>11203965The brain mainly dies off because copper deficiency makes proteins prone to collapse - same mechanism as in egg whites. (see amounts used in animal feeds)
Another problem is "brain sand", when you eat too much calcium and too little magnesium, which, among other things, creates "brain sand", as well as hardening the arteries, which makes them rupture under the pressure of pulse, and may cause miniature brain damage, even if the stroke doesn't kill you.