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).
SIDS and Sleep Apnea in Infants. When babies sleep, unexplained lapses in breathing known as apnea lead to a diminished oxygen supply to the brain and heart and can cause Sudden Infant Death Syndrome (SIDS). This tragic syndrome is the leading cause of death among infants ages 1 month to 1-year-old.