9. Thyroid Disorders: An Overlooked Instigator of Afib in Women
Thyroid disorders, particularly hyperthyroidism, or an overactive thyroid, are often underestimated contributors to Afib in women. The thyroid, a small gland located at the base of your neck, produces hormones that regulate your body’s metabolism. So, how do thyroid disorders contribute to Afib?
In hyperthyroidism, the thyroid gland produces too much thyroid hormone. This excess can cause rapid heart rate, irregular heart rhythm, or palpitations, all of which can lead to Afib. It’s noteworthy that even subclinical hyperthyroidism, where thyroid hormone levels are normal but the pituitary hormone TSH is low, has been associated with an increased risk of Afib.
Furthermore, both hypo- and hyperthyroidism can lead to changes in blood pressure and cholesterol levels, adding further risk factors for Afib. The relationship between thyroid disease and Afib emphasizes the importance of regular thyroid screening, particularly in women, given that they are more likely to develop thyroid disorders. (9)
