The city of Toyoake in Aichi Prefecture, Japan, has proposed an ordinance urging all residents to limit their smartphone and tablet usage to two hours per day outside of work and school activities. This measure, expected to be introduced in the September regular city council meeting, is the first of its kind in Japan and aims to address health concerns related to excessive screen time, including physical and mental health issues and sleep disturbances. The ordinance does not include any penalties or legal enforcement mechanisms and is intended as a guideline rather than a strict rule. The proposal also includes recommendations for children, with smartphone use limited until 9 p.m. for elementary school students and 10 p.m. for junior high school students and older. The city mayor, Masafumi Koki, emphasized that the two-hour limit is a recommendation to prevent smartphone overuse. While the initiative has drawn both support and criticism, including concerns about restricting personal freedoms, the city cites data from the Ministry of Health, Labour and Welfare to justify the guideline. The ordinance reflects growing awareness in Japan about the risks of smartphone addiction and related health problems such as "sumaho yubi," a term describing smartphone-induced hand pain.