In findings published in Cell Metabolism, the team demonstrated that red blood cells can alter their metabolism when oxygen levels drop. This shift allows the cells to deliver oxygen to tissues more efficiently at high altitude. At the same time, it lowers circulating blood sugar, offering a potential explanation for reduced diabetes risk. Gladstone Institutes. “Scientists discover why high altitude protects against diabetes.” ScienceDaily https://www.sciencedaily.com/releases/2026/02/260221060952.htm (accessed February 21, 2026).

Journal Reference:

1. Yolanda Martí-Mateos, Zohreh Safari, Shaun Bevers, Ayush D. Midha, Will R. Flanigan, Tej Joshi, Helen Huynh, Brandon R. Desousa, Skyler Y. Blume, Alan H. Baik, Stephen Rogers, Aaron V. Issaian, Allan Doctor, Angelo D’Alessandro, Isha H. Jain. Red blood cells serve as a primary glucose sink to improve glucose tolerance at altitude. Cell Metabolism, 2026; DOI: 10.1016/j.cmet.2026.01.019