Expert: Liliya Afanasyeva, gynecologist-endocrinologist ## Why Spring Is a Critical Period The thyroid gland regulates metabolism, energy levels, body temperature, and the functioning of many organs, including the reproductive system. Its hormones — T4 and T3 — directly affect overall well-being, skin condition, weight, and even concentration abilities. In winter, the level of thyroid-stimulating hormone increases, helping the body retain heat. In spring, the need for this decreases, and along with it, the levels of thyroid hormones may drop. ### Symptoms to Pay Attention To Decreased thyroid activity may manifest as: * fatigue and drowsiness * swelling * decreased concentration * slowed metabolism Such conditions are sometimes referred to as "spring hypothyroidism." ## Causes of Seasonal Changes In spring, the body often experiences a deficiency of important trace elements: iodine — necessary for hormone synthesis vitamin D — actively consumed in winter iron and selenium — involved in metabolic processes Additional influence comes from viral infections that may temporarily reduce thyroid activity. ## How to Support the Thyroid ### Nutrition Include iodine-rich foods in your diet: * sea fish (cod, pollock, flounder) * seaweed * iodized salt * nuts and persimmons Regular consumption of such foods helps maintain normal hormone production. ### Trace Element Monitoring Women during menstruation may be recommended to monitor iron levels and, if necessary, replenish them after consulting a specialist. ## When to Get Tested Experts recommend testing for TSH, free T4, and T3 at the end of winter or the beginning of spring — this allows for timely detection of disorders. It is also advisable to undergo an ultrasound examination of the thyroid gland approximately once a year. ## Why This Is Important Early diagnosis helps avoid more serious disorders and timely adjust the condition. By not ignoring the body's signals and maintaining hormonal balance, the spring period can be passed without pronounced fatigue and decreased energy.