When someone suffers a serious head injury, their thyroid gland often stops working normally right away, and the worse the brain injury, the more the thyroid is affected—suggesting the brain and thyroid might be connected in how they respond to trauma.

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Evidence from Studies

Supporting (1)

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Community contributions welcome

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Thyroid test abnormalities in traumatic brain injury: correlation with neurologic impairment and sympathetic nervous system activation.

Cross-Sectional Study

Human

After a serious head injury, the body’s thyroid gland often acts differently right away, and the worse the brain injury, the more the thyroid changes—this shows the brain and thyroid are connected when the body is under stress.

Contradicting (0)

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No contradicting evidence found

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According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Thyroid test abnormalities in traumatic brain injury: correlation with neurologic impairment and sympathetic nervous system activation.

Score: 20

DOI: 10.1016/0002-9343(88)90414-7

Similar Assertions

When people suffer a serious head injury, their thyroid hormone levels often change in a way that matches how badly their brain is hurt—and these changes can predict how well they’ll recover.

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After a serious head injury, the body's stress system might mess with the thyroid gland, which could explain why some people have hormone problems afterward.

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