AUTHOR=Xiong Yu-Jun , Xu Hua-Zhao , Meng Xiang-Da , Zhu Xing-Yun , Lv Tian , Huang Jian-Fei TITLE=Joint association of daily sitting time and sleep duration with constipation among the US population JOURNAL=Frontiers in Nutrition VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2025.1548455 DOI=10.3389/fnut.2025.1548455 ISSN=2296-861X