HEALTH: As FT4 Levels Rise, so Does Sudden Cardiac Death.

“Our study findings suggest that persons with higher thyroid hormone levels, even within what we consider the normal range of thyroid function, have a four-fold increased risk of sudden cardiac death compared to persons with lower thyroid hormone levels,” said Chaker in an interview with MedPage Today.

“Our hypothesis was that thyroid hormone levels could increase the risk of sudden cardiac death by changing levels of cardiovascular risk factors such as blood pressure. We were surprised to see that when we control our analyses for these cardiovascular risk factors, the association remained similar, suggesting that other pathways could play a role.”

As someone who’s twice endured a hyperactive thyroid gland, I can tell you it’s nothing you want to leave untreated.