May 23, 2026Researchers report that AI models trained mainly on Global North data treat regional words from Brazil’s Center-West and Northeast as statistical noise — and argue that fixing this requires more than just regional datasets; it requires treating data as a cultural meaning-making system. Science
May 23, 2026Sleep, Waste Clearance, and Dementia May Be Linked: Chronic stress, depression, cardiovascular disease, fragmented sleep, and aging are associated with a higher risk of dementia based on the same biological problem: disruption of a sleep-dependent brain rhythm that helps clear waste from the brain. Science
May 23, 2026Receiving a thumbs-down on social media doesn’t push people away from a conversation, but instead tends to encourage them to post more while softening their tone. Findings suggest that allowing downvotes on social platforms might help moderate extreme discussions without silencing individual voices. Science
May 23, 2026Researchers found that serotonin helps reduce “belief stickiness” — the tendency to get stuck on an old idea despite new contradicting evidence. This discovery holds important implications for the understanding and treatment of obsessive-compulsive disorder (OCD) Science
May 23, 2026Majorities of registered voters in nearly every state think Congress should do more to address global warming Science
May 23, 2026Record-breaking ice loss in Central Asia in 2025. The event is part of a broader global pattern of recent record-breaking glacier melt years, following extreme losses previously observed in, among others, the European Alps and the Pyrenees (2022), western North America (2023), and Svalbard (2024) Science
May 23, 2026Younger generations appear to be experiencing poorer health earlier in life than previous generations, according study of tens of thousands of people across the UK born since 1946. More recently born generations may spend more years living in poor health than those born earlier. Science
