What to watch with TSH and sleep?

TSH (thyroid-stimulating hormone) is secreted by the pituitary and regulates thyroid function. Sleep and TSH have a bidirectional relationship: sleep deprivation can elevate TSH, while hypothyroidism (high TSH) often causes fatigue and poor sleep quality. TSH also follows a circadian rhythm with a nocturnal peak, which is disrupted by irregular sleep patterns. If you experience sleep issues and abnormal TSH, medical evaluation is essential to rule out thyroid dysfunction or sleep apnea. The evidence for these interactions is strong (human-strong), based on physiological and clinical studies, not on genetic tests. MyBody-X does not measure TSH; DNA tests cannot provide clinically actionable information on thyroid function. Caution: TSH reference ranges vary by age and lab. Always consult a physician for interpretation.