Hikikomori

Reclusive adolescents or adults

Hikikomori , also known as severe social withdrawal, is total withdrawal from society and seeking extreme degrees of social isolation and confinement. Hikikomori refers to both the phenomenon in general and the recluses themselves, described as loners or "modern-day hermits". The phenomenon is primarily recognized in Japan, although similar concepts exist in other languages and cultures, especially South Korea. Estimates suggest that in Japan, half a million youths have become social recluses, as well as more than half a million middle-aged individuals. In South Korea, the estimates vary from around 350,000-500,000.

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