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 Arrhythmia Death Syndromes (SADS) are genetic heart conditions that can cause sudden death in young, apparently healthy, people. These conditions can be treated and deaths can be prevented.udden Arrhythmia Death Syndromes (SADS) are genetic heart conditions that can cause sudden death in young, apparently healthy, people. These conditions can be treated and deaths can be prevented.