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.
While a person's introverted or extraverted tendencies fall within a spectrum -- there is no such thing as a pure introvert or pure extravert, according to famous Swiss psychiatrist Carl Jung -- an introvert is most obvious and vulnerable when he or she is in an overstimulating environment.