Languages exhibit striking regularities in how meanings are mapped to word forms, yet analogous patterns at the subword level remain under-explored. This study fills the gap with a large-scale cross-linguistic analysis of regularity at and below the word level, drawing on data from over 1,900 languages.

This meta-analysis of 140 studies (~66,000 participants) finds that social inequality is associated with faster biological ageing, with stronger associations observed for newer DNA methylation epigenetic clocks than earlier generations.

Legal reforms decriminalizing same-sex relations in Asia led to modest normative changes, reflected in reduced online moral judgement and improved offline perceptions of neighbourhood safety, particularly among younger populations.

Analysing generalized anxiety symptoms as a quantitative trait rather than a clinical diagnosis, Skelton, Mitchell and colleagues report a genome-wide meta-analysis of 693,869 individuals identifying 74 associated genetic loci, with 39 loci newly associated with anxiety.

Large language models offer new opportunities for behavioural science, but their rapid evolution poses challenges for research rigour. We introduce a consensus-based reporting checklist to improve transparency, reproducibility and ethical accountability of large-language-model-based research in the behavioural sciences.

Socioeconomic inequalities shape who accesses early childcare, even in countries that claim universal provision. This entrenched inequality limits child development, women’s employment and gender equality — but governments have clear tools to close the gap.

The leaky pipeline is not only about hiring and promotion but also what happens in networking spaces where harassment goes unchecked. When careers depend on conferences and collaborations, institutions and research communities must stop leaving people to manage the risk alone, argues Shahar Hechtlinger.