Acute effects of temperature fluctuations on skin health: A randomized, crossover trial - Xinlei Zhu; Lu Zhou; Xihao Du; Yixiang Zhu; Yajun Luo; Danning Zeng; Jizong Yao; Jian Cao; Huanjun Zhou; Haidong Kan; Yue Niu (Environmental Research, 2026)