This is exactly the disease that we learn about from the media, as it manifests itself in sudden fainting (sometimes ending in death) during sports and sports competitions. There are no other external symptoms. In the early stages, the disease is completely asymptomatic. It can be detected at an early stage only with echocardiography (ultrasound of the heart): the thickness of the heart muscle will be increased. There are treatments that can significantly reduce the risk of sudden cardiac death when diagnosed in a timely manner.