AUTHOR=Wu Xiaotian , Chen Xin , Tian Fuyue , Yang Maoyuan , Lu Fan , Deng Ruzhi , Lin Na TITLE=Nonlinear effects of humidex on risk for asthenopia among adults: a national cross-sectional survey in China JOURNAL=Frontiers in Public Health VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1515672 DOI=10.3389/fpubh.2025.1515672 ISSN=2296-2565