Type D personality and cardiovascular risk
Research suggests that, for heart health, it's better to be a gregarious Pooh Bear than a gloomy, isolated Eeyore.
In the 1970s and '80s, the type A personality became a focus for cardiovascular research and a popular buzzword. People with such personalities — hard-charging, competitive, driven — were thought to be particularly at risk for heart attacks. But research hasn't borne out the connection.