"New" causes of heart disease and stroke

I have discussed 10 "new" diseases. Some produce heart disease, some produce strokes, and some may produce both heart disease and stroke. It is of great interest to me that some of them are due not to nature's ravages but to the ingestion of agents such as toxic oil, L-tryptophan, ergot, adriamycin, and psychotropic drugs. I classify these man-made diseases as "environmental" diseases. Use of some of the offending agents cannot be justified; for example, toxic oil and L-tryptophan are not needed. On the other hand, drugs such as ergot preparations are extremely useful when used properly.