Gruit was a combination of herbs, commonly including sweet gale (Myrica gale), mugwort (Artemisia vulgaris), yarrow (Achillea millefolium), ground ivy (Glechoma hederacea), horehound (Marrubium vulgare), and heather (Calluna vulgaris).
Introvert and extravert. Introvert and extravert, basic personality types according to the theories of the 20th-century Swiss psychiatrist Carl Jung.
Finally, Jung observed, âEach person seems to be energized more by either the external world (extraversion) or the internal world (introversion).â What Jung called a person's psychological type consists of his or her preference in each category. In 1921, Jung published Psychological Types, introducing the idea that each person has a psychological type.