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April 01, 2025
 

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Exposure to secondhand smoke during pregnancy, as well as smoking by pregnant women, increase the risk of placental abruption by more than double, a study has found.
JAPAN / Science & Health
Secondhand smoke more than doubles placental abruption risk, study shows
Toxic substances in tobacco have been found to reduce blood flow to the placenta, according to the Tohoku University research group.
JAPAN / Science & Health
Yellow sand blankets cities across Japan
The Meteorological Agency says the phenomenon, which could reduce visibility in some regions to under 5 kilometers, is forecast to last through Thursday morning.
JAPAN / Science & Health
Recent spate of wildfires in Japan and South Korea linked to climate change
A study by European researchers has concluded that the role of human-driven climate change in contributing to the wildfires was undeniable.
Keio University in Tokyo
JAPAN / Science & Health
Mar 22, 2025
Keio University team says stem cell treatment helped improve spine injuries
Keio University said that the motor function score for two patients improved after an operation to implant more than 2 million iPS-derived cells into a spinal cord.
Tourists visit a park in front of the Imperial Palace amid snowfall in Tokyo on Wednesday.
JAPAN / Science & Health
Mar 19, 2025
Japan's record snow in February attributed to global warming
By Tomoko Otake
The Meteorological Agency said global warming contributed to the record snowfall in northern and eastern Japan last month.
Researchers from Anicom Specialty Medical Institute, the National Institute of Genetics and Kazusa DNA Research Institute decoded the genome of American Shorthair cats and published the results in an article last October.
JAPAN / Science & Health
Mar 18, 2025
Japanese researchers set Guinness record for cat genome
Researchers decoded the genome of American shorthair cats and published the results.
Urbanization is amplifying pollen-related allergies as grasslands and soft soil give way to concrete and asphalt.
JAPAN / Science & Health
Mar 14, 2025
As pollen season peaks, Japan's allergy struggle emerges from hibernation
By Jessica Speed
In Tokyo and Sendai, high cedar pollen levels will persist into late March, followed by cypress pollen peaking from late March to early April.
People in Japan appeared to have the smallest difference between the amount of sleep they get on weekdays and weekends, suggesting the lowest incidence of social jet lag.
JAPAN / Science & Health
Mar 14, 2025
People in Japan get the least sleep, Pokemon study finds
By Yukana Inoue
Does that make Japan the land of the never-setting sun?
A construction site in Tokyo in July 2018. Businesses failing to take measures to prevent severe heatstroke among employees will be subjected to criminal punishment from June.
JAPAN / Science & Health
Mar 13, 2025
Japan to get tough on businesses not taking heatstroke countermeasures
By Tomoko Otake
Violators will be punishable with up to six months' imprisonment or a maximum fine of ¥500,000 ($3,380).
Naohisa Hoshikawa, chief executive officer and founder of Ookuma Diamond Device, in Sapporo in February. Hoshikawa says the potential of diamond semiconductors goes beyond decommissioning work, likening them to the U.S. Apollo manned lunar landing program, which gave birth to technological innovations affecting everyday life.
JAPAN / Science & Health
Mar 12, 2025
Diamond chips could be key to decommissioning of Fukushima nuclear plant
Made with artificial diamonds, such chips are regarded as the "ultimate semiconductors" — they can withstand high levels of radiation as well as high voltages and temperatures.

Japan's biggest beef bowl chain Sukiya to shut nearly 2,000 stores after rat and bug contamination
Zensho Holdings, operator of fast-food chain Sukiya, said it will close all of its stores in Japan, except for a small number in shopping centers, between Monday and Friday following recent contamination incidents.
Alert raised for volcano in southwestern Japan
Shinmoedake, a volcano located between Miyazaki and Kagoshima prefectures, in November 2019
Japan considers all possible options as Trump threatens new auto tariffs
Subaru cars awaiting export at a port in Yokohama on Thursday.
Nankai Trough earthquake could kill 298,000 people, government says
Residents participate in an evacuation drill held with West Japan Railway in Shirahama, Wakayama Prefecture, in January 2024 to prepare for a Nankai Trough earthquake and a possible tsunami following the quake.
A Canadian made a weekend trip to Costco a Japanese pastime
Under the watchful eye of Ken Theriault, Costco representative director and Japan country manager, the American membership-model wholesaler has flourished in Japan.
A Canadian made a weekend trip to Costco a Japanese pastime
Under the watchful eye of Ken Theriault, Costco representative director and Japan country manager, the American membership-model wholesaler has flourished in Japan.
Tokyo tech failures lean into misfortune, mistakes and missteps
Tsuyoshi Domoto in Tokyo's Shinjuku Ward on March 28. As an entrepreneur, Domoto experienced plenty of setbacks but maintains a positive attitude and continues to pursue his dreams.
Who among the opposition would join the ruling coalition?
Prime Minister Shigeru Ishiba enters his office in Tokyo on Friday.
Traveling the Three-Star Road, the tourist route made from thin air
Scenes like this snow-covered bridge leading to the village of Shirakawa-go are what make the Three-Star Road worth traveling — its name notwithstanding.
Recent spate of wildfires in Japan and South Korea linked to climate change
Smoke and flames rise from a wildfire in Andong, South Korea, on Tuesday.

Podcast

One of the many entrances to the Kabukicho neighborhood in Tokyo’s Shinjuku Ward.
Kabukicho: Tokyo’s ‘stadium of desire’

Longform

Professional cleaner Hirofumi Sakurai takes a moment to appreciate some photographs in a Gotanda apartment whose occupant died alone. 
The last cleanup: Life and death in a lonely Japan
By Johan Brooks

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