1 Preseed maintains this alkalinity while other vaginal lubricants tend to have pH values below 7.0 and as low as 3.5 (very acidic and deadly to sperm.  Osmolality Ã¢â¬â Semen has a specific particle concentration that keeps sperm motile and healthy.
Causes of instantaneous or sudden death. Instantaneous or sudden death may result from dysfunction/abnormalities of the heart and its vessels, noncardiac vessels, pulmonary system, and central nervous system (CNS).
Sudden Cardiac Arrest: A Healthcare Crisis. Sudden cardiac arrest (SCA) is a leading cause of death among adults over the age of 40 in the United States and other countries. In the U.S. alone, approximately 326,200 people of all ages experience EMS-assessed out-of-hospital non-traumatic SCA each year and nine out of 10 victims die.