A 2026 medRxiv preprint involving 370 healthy adults found that each increase in neighborhood-deprivation percentile rank was associated with epigenetic age acceleration on 3 of 4 second-generation DNA-methylation clocks, with lifetime adversity explaining 20.3% of the GrimAge association and 23.3% of the PCGrimAge association.1 Research Highlights 3 of 4 clocks accelerated: each increase in Area …
A 2026 survey of 38 drug checking services found that Latin American programs faced a different operating reality than US programs: funding was a major barrier more often (80% vs. 54%), drug checking equipment was legally permitted less often (44% vs. 75%), and law enforcement confiscation of checking supplies was reported more often (38% vs. …
A 2026 PRISMA-compliant systematic review and meta-analysis in Drug and Alcohol Review consolidated 30 publications covering 202 prevalence estimates from 120,041 South African adolescents: pooled lifetime prevalence was 35.09% for alcohol use, 25.47% for tobacco use, and 10.47% for cannabis use.1 Research Highlights 30 publications, 202 estimates: pooled data covered 120,041 South African adolescents. Alcohol …
Iceland is a registry-rich country with a small enough population that genuinely nationwide health data is feasible — not the survey-based approximations that anchor most psychiatric epidemiology elsewhere. A 2026 PLOS One study used the Iceland Screens, Treats, or Prevents Multiple Myeloma (iStopMM) cohort — 80,759 adults aged 40+, representing 54% of all eligible Icelanders …