I have read with great interest the research article by Varım and Demirci, titled “Evaluation of Thyroid Dysfunction in Patients with Atrial Fibrillation”, published in Volume 8, Issue 3 of the Online Turkish Journal of Health Sciences in 2023. I would like to express our appreciation to the authors and the editorial board for this insightful and informative article. In this letter, I aim to address specific points that I believe will enhance the discussion of the article.