News from Japan
Updates every hour. Last Updated: 9-Nov-2026 12:16 ET (9-Nov-2026 17:16 GMT/UTC)
9-Nov-2026
Watching sports associated with fewer depressive symptoms in adults with congenital heart disease
University of TsukubaPeer-Reviewed Publication
Researchers at University of Tsukuba found that watching sports more frequently was associated with fewer depressive symptoms in adults with congenital heart disease (CHD). Specifically, attending sporting events in person at least once in the previous year and watching sports on television or the internet at least once a week were each associated with fewer depressive symptoms. These findings suggest that watching sports may be an accessible leisure activity that could contribute to mental well-being in adults with CHD.
- Journal
- European Journal of Cardiovascular Nursing
9-Nov-2026
Excessive polypharmacy and complex medication regimens are associated with greater physician burden in home healthcare
University of TsukubaPeer-Reviewed Publication
Researchers at University of Tsukuba found that physicians providing home healthcare experienced greater clinical burden when caring for patients receiving excessive numbers of medications or following highly complex medication regimens. As populations age and demand for home-based medical care continues to grow, optimizing medication use has become an increasingly important challenge for healthcare professionals. The findings suggest that simplifying medication regimens, with attention to both the number of prescribed medications and the complexity of their administration, may help reduce physician burden while supporting safe and appropriate patient care.
- Journal
- Family Practice
9-Nov-2026
Electric air taxis may fly up to 22% less far depending on the season
Osaka Metropolitan University
Researchers at Osaka Metropolitan University developed a framework showing that representative seasonal conditions can change an electric vertical take-off and landing (eVTOL) aircraft’s achievable range by up to about 22%.
- Journal
- Applied Thermal Engineering
8-Nov-2026
A painful association: Pain-related restriction of going out linked with limitation of everyday activities in older adults
Osaka Metropolitan University
An Osaka Metropolitan University research team investigated the association between low back or leg pain-related restriction of going out and instrumental activities of daily living (IADL) limitation among older adults in Japan. The results of this study suggest that pain-related restriction of going out may be an important marker for IADL limitation.
- Journal
- Archives of Gerontology and Geriatrics Plus
8-Nov-2026
How bacteria build the molecular bushing of the flagellar motor
The University of OsakaPeer-Reviewed Publication
A team of researchers at the University of Osaka has revealed the stepwise mechanism by which bacteria assemble a molecular bushing around the drive shaft of the flagellar motor. The ring first forms while tightly bound to the shaft and is then released from its surface, allowing it to support the high-speed, low-friction rotation required for bacterial movement. By clarifying how a complex biological machine can assemble itself with remarkable precision, this discovery provides valuable design principles for artificial nanomachines and may contribute to future technologies such as efficient drug-delivery systems and other biomedical devices.
- Journal
- Communications Biology
- Funder
- Japan Society for the Promotion of Science, Ministry of Education, Culture, Sports, Science and Technology, Japan Agency for Medical Research and Development, Basis for Supporting Innovative Drug Discovery and Life Science Research, Cyclic Innovation for Clinical Empowerment, RIKEN, JEOL YOKOGUSHI Research Alliance Laboratories of The University of Osaka, PHS from National Institutes of Health
8-Nov-2026
Underwater record of “hidden” disasters discovered
University of TokyoPeer-Reviewed Publication
Researchers at the University of Tokyo have used a new type of radiocarbon analysis to study a sediment core taken from the Kumano Sea off the coast of Japan. This has revealed multiple “hidden” traces of previously unknown earthquakes in the Nankai Trough, where the country’s next megaquake is expected to occur. Reconstructing a more accurate picture of the past will help with the prediction of future geophysical events and to prepare for potential disasters.
- Journal
- Radiocarbon
- Funder
- This research was supported by Grant-in-Aid for Scientific Research (2540125, 23KK0013, 24H00094) from the JSPS, JST CREST (JPMJCR23J6) to YY.
8-Nov-2026
Beyond trial and error: A framework for AI-driven solid-electrolyte discovery
Advanced Institute for Materials Research (AIMR), Tohoku UniversityPeer-Reviewed Publication
Research can be a frustrating endeavor. What works well theoretically or in the lab may fail miserably when put into practice. Scientists often face this problem when searching for new battery materials. Yet a recent research paper has shown how AI can alleviate this problem by guiding researchers to the correct experiments to perform.
- Journal
- Advanced Materials
8-Nov-2026
Shinshu University study tracks rising autism and ADHD diagnoses across Japan
Shinshu UniversityPeer-Reviewed Publication
A new study using national health insurance data found that diagnoses of autism spectrum disorder and attention-deficit/hyperactivity disorder are rising in Japan. Researchers identified a second ADHD diagnosis peak among women aged 20 to 24 years and found that adult ADHD diagnoses surpassed autism diagnoses in 2013 among females and 2014 among males. The findings may help services plan support, while highlighting that diagnosis trends do not necessarily indicate rising prevalence.
- Journal
- JAMA Network Open
- Funder
- Ministry of Health, Labour and Welfare of Japan
8-Nov-2026
Light reflecting within thin films can masquerade as molecular signals in perovskite solar materials
National Institutes of Natural SciencesPeer-Reviewed Publication
A purely optical effect in thin films can mimic light-induced changes in molecular vibrations. The analysis reproduces most of a puzzling infrared signal in a perovskite film without any change in molecular vibrations. The effect can appear as increased absorption, a peak shift, or bleaching, depending on the charge response. Measuring dilute nanocrystal solutions is predicted to eliminate the misleading signal. The work provides a framework for interpreting past and future infrared studies and lays the groundwork for quantitative nanoscale infrared spectroscopy.
- Journal
- The Journal of Chemical Physics
- Funder
- JSPS KAKENHI, JST FOREST program