author

 
 
 Tomoko Otake

Meta

Twitter

@Tomoko_Otake

Tomoko Otake
Tomoko Otake is a senior writer with a strong interest in health, medical and social issues. A native of Nara Prefecture, she obtained an M.A. in journalism from The University of Montana.
Visitors lounge on the grassy hill on the top of the Grand Ring during the 2025 Osaka Expo in the city of Osaka in May.
JAPAN / Society
Oct 10, 2025
‘Save the Ring’ calls intensify as Osaka Expo’s end nears
The prefectural and city governments of Osaka have announced they will retain just a 200-meter portion of the world's largest wooden structure.
Susumu Kitagawa speaks to reporters at Kyoto University on Wednesday after receiving the news that he had been awarded the Nobel Prize in chemistry the same day.
JAPAN / Science & Health
Oct 9, 2025
Chemistry Nobel winner Kitagawa says downtime helped him think up new material
Waiting on a supercomputer to analyze the structure of a new crystal gave him time to come up with the idea for a kind of material that could, for example, capture carbon dioxide.
Shimon Sakaguchi, an immunologist and a distinguished professor of the University of Osaka, arrives for a news conference Monday night after winning the 2025 Nobel Prize in medicine, in Suita, Osaka Prefecture.
JAPAN / Science & Health
Oct 8, 2025
Nobel laureate Sakaguchi urges support for science despite its 'poor success rate'
The Nobel Prize winner engaged in research once considered dodgy or even dangerous, and he said he struggled to gain support for it early in his career.
Shimon Sakaguchi, an immunologist and a distinguished professor of Osaka University, attends a news conference after winning the 2025 Nobel Prize in medicine, in Suita, Osaka prefecture, on Monday.
JAPAN / Science & Health
Oct 7, 2025
With medical breakthrough, Japan’s latest Nobel winner bucked convention
Shimon Sakaguchi’s unwavering conviction in the validity of his research paid off with the discovery of immune-regulating cells — and a Nobel Prize in medicine.
Shimon Sakaguchi, an immunologist and distinguished professor at Osaka University, attends a news conference after winning the 2025 Nobel Prize in medicine, in Osaka Prefecture on Monday.
JAPAN / Science & Health
Oct 7, 2025
Japanese immunologist among three Nobel medicine prize winners
Japanese immunologist Shimon Sakaguchi was awarded the prize along with two other scientists for their discovery concerning peripheral immune tolerance.
Visitors wait in line to enter the Tech World pavilion at the Osaka Expo on Thursday.
JAPAN
Sep 26, 2025
Taiwan showcases chipmaking prowess as a private exhibitor at Osaka Expo
The expo’s guidebook makes only brief references to Taiwan's food and lifestyles, but the structure of its pavilion and exhibits are rich in symbolism.
A scientist looks at scans of grains at the Memory Centre at the Department of Readaptation and Geriatrics of the University Hospital (HUG) in Geneva, Switzerland, on June 6, 2023.
JAPAN / Science & Health / FOCUS
Sep 17, 2025
Japan’s front-line researchers see bright path ahead for dementia treatment
Four scientists at the forefront of dementia research speak about what kind of future they envision for people with the condition.
Hikers on a trail in Hakuba, Nagano Prefecture. As extreme heat continues to grip Japan, a tectonic shift may be underway in the nation’s summer tourism scene as more people gravitate toward cooler destinations.
ENVIRONMENT / Climate change / OUR PLANET
Aug 24, 2025
Are 'coolcations' the answer for Japan's heat-weary tourists?
Those in the travel industry are working to advertise cooler destinations, amid the prospect that the heat may prompt people to give up on traveling in the summer altogether.
An illustration of a colony of the Bordetella pertussis bacterium that causes pertussis, or whooping cough. As of Aug. 10, there were 64,467 cases reported this year, according to the latest data from the Japan Institute for Health Security.
JAPAN / Science & Health
Aug 21, 2025
Infectious diseases to watch for in Japan this summer amid surge of cases
Experts believe a recent surge in infections is due to relaxed hygiene measures, drug-resistant bacteria and lowered immunity levels amid extreme heat.
Members of the nonprofit group Japan Youth Memorial Association search for the remains of dead soldiers in a cave in Okinawa Prefecture in February.
JAPAN / History / Longform
Aug 15, 2025
The long search for Japan’s lost soldiers
An decades-long effort to recover the remains of those who died during World War II, most of them abroad, may be entering its final phase.
Katsutoshi Takegami, 77, in his storehouse attic where he discovered his father's Unit 1644 documents
JAPAN / History
Aug 13, 2025
Hidden rosters and the legacy of Japan’s germ warfare
In a dusty box, a Nagano man finds proof his father served in Nanjing, China, with Unit 1644, part of Japan’s covert biological weapons network during World War II.
Hideo Shimizu, 95, says he cannot forget seeing the prisoners' bloody wills scribbled on the walls of prison cells at Unit 731 in 1945.
JAPAN / History
Aug 13, 2025
The indelible memory of being a part of Unit 731
For 95-year-old Hideo Shimizu, the 4½ months he spent with the biological and chemical warfare unit of the now-defunct Imperial Japanese Army were just like yesterday.
Police officers ask a man to evacuate from an empty beach following a tsunami warning, in Fujisawa, Kanagawa Prefecture, on Wednesday.
JAPAN
Jul 30, 2025
Japan on edge but prepared for tsunami after huge Kamchatka earthquake
Tsunami waves measuring up to 1.3 meters were observed off the Pacific coast of Japan, with authorities urging people in coastal areas to evacuate to higher ground.
Japan's temperature soared to a record 41.2 degrees Celsius in Tanba, Hyogo Prefecture, on Wednesday, surpassing the previous high of 41.1 C.
JAPAN / Breaking
Jul 30, 2025
Japan marks highest-ever temperature of 41.2 C in Hyogo
The mercury hit the above-human temperature of 41.2 C in the city of Tanba, Hyogo Prefecture, as authorities urged people to take precautions to avoid heatstroke.
The city of Obihiro in Hokkaido amid scorching heat on Thursday
JAPAN
Jul 25, 2025
Extreme heat grips Japan, including even Hokkaido
Several cities in Hokkaido experienced record-high temperatures on Thursday, and Hokkaido Railway has suspended portions of its rail lines as a safety precaution.
A coral reef in Okinawa in July 2022. Some jurisdictions around the world have moved to ban certain sunscreens in a bid to protect coral reefs, but some say the impact on reefs is far from clear.
ENVIRONMENT / Wildlife / OUR PLANET
Jul 20, 2025
Japan’s top brands get tied up in the great sunscreen debate
The debate over the damage sunscreens cause to the marine environment is heating up as some regions ban certain chemical ingredients.
Researchers at the National Cancer Center Japan say a new type of gut bacteria named YB328 could help unlock the potential of cancer immunotherapy.
JAPAN / Science & Health
Jul 15, 2025
Japan researchers identify gut bacteria strain that boosts anticancer drugs
The discovery may help raise the success rate of a type of cancer treatment that currently works for only 20% of patients who receive it.
Japan will experience a heat wave through mid-July on a “level only seen once in a decade,” the Meteorological Agency said on June 30.
JAPAN
Jul 6, 2025
Heatstroke alert issued for 19 prefectures as Japan enters 'once-in-a-decade' heat wave
Included among the alerts were the first of the year for central Tokyo and Kanagawa Prefecture.
Waseda University is one of 14 institutions in eight countries found to have used hidden prompts in research papers.
JAPAN
Jul 4, 2025
Hidden AI prompts in academic papers spark concern about research integrity
The discovery raises serious concerns about the integrity of the research in the papers and highlights flaws in academic publishing.
People cross a street under the hot sun in Tokyo on Friday.
JAPAN / Science & Health
Jun 26, 2025
Last week’s heat wave in Japan not possible without climate change, analysis shows
The heat wave, which came shortly after the rainy season was declared, caused a surge in ambulance calls for heat-related illnesses.

Longform

Growing families are being priced out of Tokyo’s condo market, forced to choose between downtown convenience and suburban space.
Is living in central Tokyo still affordable?