Episodic Epidemics and Coronary Disease
The first half of the curve is very jagged, and that’s mainly attributable to episodic epidemics of one kind and another. [There’s been] a smoother interval since then with halting progress. Some plateaus, some acceleration.
The period between 1950 and 1970 can be described as the evidence of coronary disease and other cardiovascular disease – stroke – which has been in a remarkable degree abated since that time. We don’t truly know the causes of it, although post war affluence may be the most important consideration. Subsequent to that time; self-consciousness about lifestyle, diet, smoking, and the use of aspirin may be some of the positive contributors, as well as gradually improving medical management of heart disease and so forth. Even coronary bypass does play some sort of part in that, but probably the least of all the interventions that I've just indicated.