PNAS Nexus · 1 August 2026 · From issue 18

Dining out cut social isolation by 47.3% compared to staying in home neighborhoods.

Mingxing Chen, Yue Xian et al., The pivotal role of the food service industry in alleviating urban segregation and boosting city vitality, PNAS Nexus.

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Also in issue 18 15 papers

In rodents, a tiny protein cage vaccine protected against two deadly Ebola virus types.
Nature Communications
A short workout or a nap each boosted memory by 22% after a sleepless night.
Proceedings of the National Academy of Sciences
Ash coatings on old lava show volcanoes can quietly spew ash for months during lava flows.
Nature Communications
In lab tests, a new coating pushed solar cell efficiency to 27.59 percent.
Nature Communications
Joining social media before grade 9 lowered later test scores in Italian, English and math.
Nature Human Behaviour
Popular AI chatbots often gave risky responses to simulated users with mental health struggles.
Nature Medicine
A new blood test tracks physical changes in immune cells linked to clogged arteries.
Nature Nanotechnology
In distant galaxy cores, radio light and gamma ray light rise together, hinting at a shared source.
Monthly Notices of the Royal Astronomical Society
Word prediction models explain first-glance reading trouble but not why people reread confusing sentences.
Proceedings of the National Academy of Sciences
A new three-part system sorts how animals and insect colonies evolved from smaller cooperating parts.
Proceedings of the National Academy of Sciences
Bengalese finch songs have word-like chunks that follow the same pattern as human language.
Science Advances
Fruit and honey sugars, not just meat, may have fueled brain growth in early human ancestors.
Science
A new tool predicts flood clusters across many river sites for the next 1 to 10 years.
Geophysical Research Letters
A quantum system's lowest energy state can look just as scrambled as boiling hot matter.
Physical Review X