Sex education expert Atsuko Yoshida is alarmed by the increasingly decadent lifestyle of youth that has made them more susceptible than ever to sexually transmitted infections.

Yoshida, a 41-year-old midwife and adviser for adolescents at the Japan Family Planning Association, said, however, that she has given up on confronting the youth from a moral standpoint.

"Arguments that they are too young to have sex or should not sell themselves are ignored. So instead, I raise the issue from the scientific side and tell them straightforwardly how to avoid such infections," she said.