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).
Sudden cessation of functional circulation. In the U.S., about 1000 people die daily as a result of cardiac arrest. Synonym: cardiopulmonary arrest; sudden cardiac arrest See: arrhythmia; myocardial infarction. Coronary artery disease is present in most victims. Cardiac arrest is usually caused by myocardial infarction or ventricular arrhythmias.