AUTHOR=Huang Yingxuan , Wang Yubin , Xu Boming , Zeng Yilin , Chen Peizhong , Huang Yisen , Liu Xiaoqiang TITLE=The association between constipation and anxiety: a cross-sectional study and Mendelian randomization analysis JOURNAL=Frontiers in Psychiatry VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2025.1543692 DOI=10.3389/fpsyt.2025.1543692 ISSN=1664-0640