Smoking one cause of Sudden Infant Death Syndrome
To the Editor:
Sudden Infant Death Syndrome involves a sudden, unexplained, unexpected death of a baby during the first year of life, and it’s the leading cause of death in otherwise healthy infants.
A growing body of evidence implicates tobacco use in many of those deaths — and researchers are now beginning to understand more precisely how exposure to secondhand smoke affects developing babies. Chemicals in secondhand smoke appear to affect the brain in ways that can interfere with an infants’ breathing.
Infants who die from SIDS have higher concentrations of nicotine in their lungs and higher levels of cotinine (a biological marker for secondhand smoke exposure) than infants who die from other causes.
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