We usually think of the adipose tissue in terms of waist circumference or clothing size. Meanwhile, a special kind of it accumulates in the immediate vicinity of the heart. This seemingly harmless fat may stop being a "passive energy store" and become metabolically active, pro-inflammatory and toxic to our heart. Dr Karol Momot from the Department of Physiology and Pathophysiology WUM describes how epicardial fat contributes to dangerous arrhythmias and heart diseases and why cardiac procedures may be insufficient in the face of this condition.

