“…Although they might be easy to overlook, they probably experience much private unhappiness, as adolescent shy behavior is linked to loneliness (Mounts, Valentiner, Anderson, & Boswell, 2006), having fewer friends (Asendorpf & Wilpers, 1998), and other internalizing problems such as anxiety, low self-worth (Jackson, Fritch, Nagasaka, & Gunderson, 2002), depression (Elovainio et al, 2004;Smith & Betz, 2002), social phobia (Heiser, Turner, & Beidel, 2003), and eating disorders among women (Troop & Bifulco, 2002). Shy behavior in adolescence seems to be particularly problematic in the long run, as it has been linked to middle-adulthood measures of poor romantic and sexual relationships, low self-esteem, and low subjective well-being (Kerr, 2001).…”