Skip to main content

Thyroid Hormone Brain Fog

Meaning

Thyroid Hormone Brain Fog is the clinically recognized constellation of cognitive symptoms, including impaired concentration, poor memory recall, and mental sluggishness, that is directly attributable to suboptimal thyroid hormone signaling in the central nervous system. This condition is not solely linked to overt hypothyroidism but can occur even with TSH levels within the conventional reference range, often due to impaired T4 to T3 conversion or thyroid hormone resistance at the cellular level. Addressing the root cause of this signaling deficit is essential for restoring sharp, sustained cognitive function. It is a tangible symptom of neuroendocrine insufficiency.