When does heart disease begin (and what this tells us about prevention)?

Diagonal Ear Lobe Creases: Signs of Heart Disease? | …

I first studied psychological science in the 1970s, and one of the most popular ideas at that time was the Type A personality. Two cardiologists, Meyer Friedman and Ray Rosenman, had made the case that a certain type of person—competitive, driven, hurried, easily angered—had a much higher risk of heart attack and heart disease than did easy-going types, which they labeled Type B. The idea of Type A personality took hold in the public imagination, and it’s still heard in the common parlance today.

Negative Personality Can Hurt Heart - WebMD

The concept was scientifically controversial from the start, but it did provoke a lot of debate—and an explosion of research. Indeed, the notion of a heart attack-prone personality played an important part in the emergence of health psychology and behavioral medicine as legitimate approaches to understanding disease. But the Type A idea itself soon began to erode, and eventually disappeared from serious scientific discussion.

The early research raised more questions than it answered, notably: How, precisely, does a pattern of behaviors cause the physical changes that culminate in cardiovascular disease? Can these traits and behaviors be changed, with reduced heart risk? Where does Type A originate? Do harmful Type A behaviors vary across gender, race and culture?