Originally psychologist Tamaki Saitō, who first coined the phrase, estimated that there may be over one million hikikomori in Japan, or approximately 1% of the total Japanese population, but considering that hikikomori adolescents are hidden away and their parents are often reluctant to talk about the problem, it is extremely difficult to gauge the number accurately.
In 1980 he graduated from Morioka First High School and matriculated into the University of Tsukuba the same year; graduating in 1986 from the medical faculty with a specialization in Environmental Ecology.
Tamaki | Nami Tamaki | Tamaki, New Zealand | Yoot Saito | Ryo Saito | East Tamaki | Tamaki River | Takao Saito | Takako Saito | Seigo Saito | Saitō Makoto | Saito Kinen Festival Matsumoto | Saitō Dōsan | Ryoei Saito | Makoto Saito | Chiho Saito | Tamaki Saitō | Tamaki Miura | Takumi Saito | Saitō Yoshitatsu | Minoru Saito | Masato Saito | Masaki Saito | Kōji Tamaki | Hitohiro Saito |