About 3 percent of Japanese are probably suffering from generalized anxiety disorder, which leads to depression and seriously affects not only those who have it, but also those around them.
Osamu Tajima, a Kyorin University professor, said GAD patients sleep poorly, suffer headaches and become highly sensitive and impatient.
"Naturally, they become irritable, tormenting themselves and troubling those around them," Tajima said.
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