What are characteristics of type A and B personalities and their health risk factor?

Type A personalities generally have an impatience with
people and always feel an urgency when it comes to time management. For example, a type
A is frustrated with long lines, interrupt people when they are talking, and talk really
fast. They also tend to be hostile and agressive, which is sometimes seen as rudeness.
Finally, type A's tend to be competitive, and driven to
succeed.

The physical characteristics and health risk
factors are teeth grinding, facial tension, hypertension, heart disease, job stress, and
social isolation.

Type B personalities tend to like to be
the center of attention, they are high energy and love excitement. Type B's are
supportive of others, but also want very much to be liked by others. They are outgoing,
talkative, and persuasive.

They are also at some risk of
hypertension, and heart disease, but are less prone to stress as they are less
competitive and more relaxed in their outlooks on life.