Average number of heatstroke-related deaths each year has increased six fold since 1995

Japan’s meteorological agency has issued a heatstroke alert for 26 of the country’s 47 prefectures, urging people not to go outside unless absolutely necessary, to use their air conditioners during the day and at night, and to drink plenty of water.

Authorities in Japan issued the extreme heat warnings after the temperature reached 40C for the first time this year on Sunday, as the country swelters in the grip of another heatwave.

Japan’s supreme court rules that practice under now-defunct eugenics law was unconstitutional

Japan’s supreme court has ordered the government to pay damages to dozens of people who were forcibly sterilised under a now-defunct eugenics law, saying the practice had violated their constitutional rights.

Wednesday’s ruling by the country’s highest court marks a major victory for the 39 plaintiffs, and thousands of other people with illnesses and genetic and mental disorders who had undergone procedures without their consent, mostly between the 1950s and 1970s.

Conservative Yuriko Koike is seeking a third term with leftist Renho Murata her main challenger as the city grapples with falling birth rate

The race to become Tokyo’s next governor has kicked off, with two women in the lead to run the world’s most populous city – a rarity in a country where comparatively few women occupy high political office.

Millions of voters in Tokyo will elect their governor early next month. The successful candidate’s most urgent job has a more familiar ring, however: to address the capital’s accelerating demographic crisis.