Joint association between physical exercise, caffeine intake, and biological ageing: A cross-sectional analysis of population-based study. - Chen, Guang; Zhou, Shichen; Xun, Yunqing; Fong, Tung Leong; Tang, Guoyi; Wang, Jingyi; Li, Hongzheng; Yin, Xiangjun; Gao, Jialiang; Zhu, Guanghui; Wu, Ying; Li, Jinlin; et al. (PLoS ONE, 2025)