Whether they're too busy lining up for new Apple Inc. gadgets, reading questionable manga or watching videos of pop group AKB48, it seems Japan's male youth is increasingly united on one thing – a lack of interest in real-life sex.

At least according to a study published Thursday by the Japan Family Planning Association, that is. In the latest survey of attitudes to sex conducted September 2010 by the agency, part of the Ministry of Health, Labor, and Welfare, fully 36% of males aged 16 to 19 surveyed described themselves...