Hardiness

You need to know research into Hardiness as well as research into Type A and B personalities.

Hardiness is not a personality type on its own, instead it's a set of 3 characteristics that you might have in additional to your typical personality characteristics that specifically help you defend against the negative effects of stress (i.e. illness, moodiness)

Have a go at the Hardiness questionnaire in the back of your 2nd stress booklets to see if you have the hardy characteristics