In UK Biobank scans of 37,571 adults, more children went with stronger sensorimotor brain connections, the same links that weaken with age. The parenthood and aging maps correlated at r = -0.81 in men and -0.66 in women at the network level.

In a national sample of 4,520 US children, more frequent math instruction aligned with science of learning principles predicted higher end-of-fourth-grade math achievement, even after accounting for earlier scores, and the link did not depend on how interested children were in math.

In a survey of 125,147 people in 70 countries, men scoring higher on masculinity norms earned about 3% more but had worse depression scores, were 5.3 points less willing to seek therapy and 9 points more likely to back strongman rule.

Linking hospital ransomware attacks to Medicare claims, economists found patient volume drops 17 to 24% in the first week of an attack, and in-hospital mortality for patients already admitted rises by 34 to 38%.

A difference-in-differences study of Chicago found violent crime, especially robbery, rose significantly near dollar stores after they opened, with no sign of displacement, and returned to pre-opening levels after they closed.

A study of 948 US billionaires found 95% have an upper-class spouse, but 66% of female billionaires' spouses hold economic elite positions such as business roles, against only 32% of male billionaires' spouses, who more often work in philanthropy or culture.

In a placebo-controlled study of 260 people, a 1,000 mg dose of acetaminophen led participants to step onto a terrifying virtual plank sooner, cross it 22% faster and show a 12% smaller heart rate spike.