Emma Navarro has ended her 2026 season to continue treatment for Relative Energy Deficiency in Sport (RED-S) and Hashimoto’s hypothyroidism, the American revealed in an Instagram post describing health problems that affected her for nearly three years. The former world #8 plans to return at the Australian Open in January.
RED-S is a syndrome caused by low energy availability, which occurs when an athlete’s food intake does not cover the energy demands of training and competition on top of the body’s basic needs. The shortfall can disrupt metabolism, hormone levels, immune function and bone health, as well as mood and concentration. Hashimoto’s thyroiditis is an autoimmune condition in which the immune system attacks the thyroid gland, and it is a common cause of hypothyroidism, an underactive thyroid.
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