Typical lubricants have higher particle concentrations then sperm can tolerate which can cause them to stop moving and render them unable to fertilize an egg. In contrast, Preseedâs osmolality matches that of semen and thus does not harm or damage sperm.
Most sudden cardiac deaths are caused by abnormal heart rhythms called arrhythmias. The most common life-threatening arrhythmia is ventricular fibrillation, which is an erratic, disorganized firing of impulses from the ventricles (the heart's lower chambers).
Young people with long QT syndrome have an increased risk of sudden death. Other causes of sudden cardiac death in young people include structural abnormalities of the heart, such as undetected heart disease that was present at birth (congenital) and heart muscle abnormalities. Other causes include inflammation of the heart muscle, which can be caused by viruses and other illnesses.