More than 60% of male null mice died suddenly because of the bradyarrhythmias. … Disturbance of either can cause bradyarrhythmias such as sick sinus syndrome or atrioventricular (AV) block, conditions that often result in syncope and/or sudden cardiac death (SCD).

Why do I keep finding dead mice in my house?

House mice may enter indoors for a variety of reasons, including looking for food, water or shelter. When indoors they can die for a host of reasons, from old age to electrocution. A sign of a dead mouse (hidden or otherwise) is the presence of a strong odor of decay.

What to do if you can't find a dead mouse?

Coffee grounds are pleasant, powerfully aromatic and absorb odor. Other options that work on that dead mouse smell are charcoal deodorizer bags, Odor Remover Bags, pet odor enzymatic sprays and, if you’re willing to spend some money, air ionizer machines.