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 cardiac arrest (SCA) is one of the leading causes of death among adults in North America. Each year, it claims the lives of a quarter of a million people in the United States alone. Once every one or two minutes, another American succumbs suddenly, without warning.