Aluminum
If you are using aluminum cookware – you’d do yourself a favor by throwing it out. Science has uncovered a strong correlation between aluminum and Alzheimer disease.
But… why did “science” (see also Microwaving) take so long to come out with this finding? Not to mention why wasn’t “modern” society aware of this when villages in India, have traditionally avoided aluminum and have used only earthenware, iron/steel, or copper pots. Rural folk may even educate you on what health benefits each has!
FYI, science is now evaluating why a population of Indians who do use aluminum cookware don’t have occurrences of Alzheimer disease. It is speculated that the turmeric in their food somehow neutralizes some of the ill effects of aluminum (also goes to support that Indian/Hindu cooking is in itself a science; the number of micro-nutrients in the average Indian curry is unmatched – just think of all the Ayurvedic/medicinal components that make up sambar or rasam for instance). I suppose science will now try to “isolate” the chemical in turmeric into a “pill” for mass production.