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Researchers have found more evidence to support the theory that babies who die of sudden infant death syndrome (SIDS) have a chemical deficiency in the brain.
SIDS deaths linked to brain chemical imbalance
Seeded on Wed Feb 3, 2010 3:27 AM EST
Article Source: abc.net.au- Enjoy this article? Help vote it up the 'Vine.
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A Harvard University team found that a lack of serotonin in the brain may leave some babies vulnerable as they sleep.
Most scientists believe babies die of SIDS because of what is called the triple risk - the stage of the child's development, a stress placed on them during sleep, and an underlying vulnerability.
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#1 - Wed Feb 3, 2010 3:28 AM ESTThere is also evidence that SIDS may be a result of a problem with heart beat regulation (which is related to chemicals in the brain) and potentially a kind of seizure of the heart or brain stem.
Most people believe your heart rate is constant unless you exercise, but actually your heart speeds up when you breath in and slows down when you exhale. Studies suggest that SIDS babies have their hearts speed up and, when they exhale, it doesn't slow down for some reason (chemicals, seizure?) and that causes cardiac arrest.
http://www.mdconsult.com/das/article/body/181602516-2/jorg=clinics&source=&sp=22604747&sid=0/N/721591/s0733861909000553.pdf
The good news is that there are a good number of scientists trying to determine how to prevent this phenomenon.
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