Understanding Thyroid Problems: 15 Warning Signs

5. Altered mental capacity

Thyroid dysfunction may also cause altered mental capacity. When the thyroid gland produces too much hormone, one may experience a lack of concentration and are nervous and easily distracted. When it provides too little hormone, an individual can experience brain fog, slow mental processing, and forgetfulness. In most instances, such subtle symptoms go unnoticed, even though they are among the first to appear. Treatment of the underlying thyroid disorder can often quickly alleviate issues pertaining to cognitive function.