Difficulty concentrating is one of many hypothyroidism symptoms
Difficulty concentrating is one of many thyroid symptoms. The thyroid hormones T3 (triiodothyronine) and T4
(thyroxine) play an important role in helping the body use nutrients and oxygen to produce energy.3 The brain in
particular needs glucose and oxygen in order to function properly. As a result, the brain slows down when
thyroid hormone levels are low.2 The decline in memory, learning, reasoning, and problem-solving skills makes
it difficult to concentrate.1