anoriathdunadan:

foreverrwinter:

They’ve found the cause of Sudden Infant Death Syndrome. Babies who die of SIDS have a significantly lower level of an enzyme, the purpose of which is to rouse the baby from sleep if necessary (such as the baby stops breathing). This is extremely huge science and medicine news. There is a biological reason. It’s not random.

Researchers Pinpoint Reason Infants Die From SIDS

Published: May 11, 2022 By Rosemary Scott

According to Mayo Clinic, many in the medical community suspected this phenomenon could be caused by a defect in the part of the brain that controls arousal from sleep and breathing. The theory was that if the infant stopped breathing during sleep, the defect would keep the child from startling or waking up. 

The Sydney researchers were able to confirm this theory by analyzing dried blood samples taken from newborns who died from SIDS and other unknown causes. Each SIDS sample was then compared with blood taken from healthy babies. They found the activity of the enzyme butyrylcholinesterase (BChE) was significantly lower in babies who died of SIDS compared to living infants and other non-SIDS infant deaths. BChE plays a major role in the brain’s arousal pathway, explaining why SIDS typically occurs during sleep. 

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As the cause is now known, researchers can turn their attention to a solution. In the next few years, those in the medical community who have studied SIDS will likely work on a screening test to identify babies who are at risk for SIDS and hopefully prevent it altogether.