Type B

☆

a personality type characterized by serenity, relaxation, amiability, etc., traits thought to make one less susceptible to heart attacks

Origin: see Type A

See Type B in American Heritage Dictionary 4

or Type B

adjective

Of or relating to a behavior pattern marked by a relaxed manner, patience, and friendliness that possibly decreases one's risk of heart disease.

noun

One who exhibits this behavior pattern.

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