5. Altered Mental Capacity
Thyroid dysfunction may also be responsible for altered mental capacity, as briefly mentioned previously. When the thyroid gland produces too much hormone, patients tend to exhibit a lack of concentration and high distractibility. When it produces too little hormone, on the other hand, patients suffer from brain fog, slow mental processing, and forgetfulness. In most instances, such symptoms go unnoticed, as they are more subtle than other signs of thyroid disease. Treatment of the underlying thyroid disorder can quickly alleviate these issues with cognitive function; they are among the earliest symptoms to disappear.