A 2026 rat study found that 21 days of late-adolescent tetrahydrocannabinol (THC) exposure produced adult anxiety-like behavior in the elevated plus maze and weaker novel object recognition than vehicle exposure. The controlled animal result gives a biologically anchored model for why repeated high-THC exposure during development remains a real concern.1 Research Highlights Late-adolescent THC exposure …
A 2026 Egyptian study of 76 children found a sharp mental-health gradient in phenylketonuria (PKU): late-diagnosed children had higher depression scores, lower quality of life, lower IQ, and a 21.4% rate of reported suicidal thoughts. Early-diagnosed children still differed from controls on some functioning measures, but the late-diagnosed group carried the heaviest psychiatric and cognitive …
A 12-week text-message intervention for people with schizophrenia spectrum disorders improved diabetes self-management confidence and patient activation, but it did not yet move weight, HbA1c, physical activity, or psychiatric symptoms. SMART looked feasible and psychologically useful in this uncontrolled pilot; cardiometabolic outcomes need a full-scale randomized trial with longer follow-up.1 Research Highlights SMART was tested …
Warm AI chatbots can feel more supportive while becoming less reliable. In a 2026 Nature experiment across 5 language models, warmth fine-tuning raised wrong-answer rates by 7.43 percentage points on average, and the gap was largest when users sounded sad.1 Research Highlights Warmth came with an accuracy cost. Models trained to sound warmer made more …
The “men have shallower friendships” story is too blunt. In a 2026 Sex Roles analysis of 1,899 young adults, the familiar gender friendship gap was largely driven by one group: white men reported the lowest closeness to best friends, while Black men, Latino men, and women across ethnoracial groups looked much more similar after adjustment.1 …
The most-quoted figure on veteran suicide is “22 a day,” produced from 21-state death-certificate data for 1999–2010.2 The VA’s 2024 Annual Report — with mortality data through 2022 — puts the current daily count at 17.6 Veteran suicides, but the per-Veteran rate has gone the other way.1 Research Highlights Daily count was 17.6: 6,407 Veteran …
Clozapine has been the most effective antipsychotic in schizophrenia for almost 40 years, yet it is still routinely held back until patients have failed multiple alternatives over many years — a “third-line, after years of failure” default that a 2026 Current Opinion review by Davani et al. argues is no longer supported by the evidence.1 …