Overview of the study methods and results, which demonstrate a link between chronic fatigue syndrome symptoms and lower thyroid hormone levels Credit: © 2018 Ruiz-Núñez, Tarasse, Vogelaar, Dijck-Brouwer and Muskiet. Front. Endocrinol. doi: 10.3389/fendo.2018.00097 New research demonstrates a link between chronic fatigue syndrome (CFS) symptoms and lower thyroid hormone levels. Published in Frontiers in Endocrinology, the study...