Ambient temperature and wet bulb globe temperature outperform heat index in predicting hydration status and heat perception in a semi-arid environment. - Baker, Lilian; Jacobson, Hannah; McGrosky, Amanda; Hinz, Elena; Wambua, Faith; Sherwood, Alison; Mbeng, Tiffany-Chrissy; Nzunza, Rosemary; Braun, David R.; Ndiema, Emmanuel; Pontzer, Herman; Rosinger, Asher Y. (Annals of Human Biology, 2025)