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.

Pooling 175 studies of 418,528 young people from 1981 to 2019, researchers found no rise in total emotional and behavioral problems. Aggression fell, while some attention, thought and teen anxiety-depression scores rose modestly.