... social situations, and being easily hostile to others. This has been known as the Type A personality. Type B, on the opposite, is the relaxed and carefree personality. The aim of the study was to investigate the association between Type A personality and CHD. Over 3000 men aged between 39 and 59 took part in the study. They were assessed over eight and a half years. All the participants were healthy at the start of the study. The first part of the study involved categorising the participants into high-stressed personality (Type A) and non-stressed (Type B). This was done using structured interviews. However, the researchers were not only interested in participants' responses to specific questions, such as "How do you react when you have to wait in a queue?", but also in how they behaved during the interview. The whole experiment procedure was set up in such a way as ...

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