[CBS News]

Despite all the reported dangers, more parents are sharing a bed with their infants, according to a new study.

Researchers have discovered that the number of infants sharing a bed with adults has more than doubled between 1993 and 2010, especially among black and Hispanic families.

That’s worrisome, say researchers, because bed-sharing has been linked to a higher rate of sudden infant death syndrome (SIDS), which is the unexpected, sudden death of a child under the age of 1 where an autopsy cannot determine a cause of death. No one knows what causes SIDS, but doctors believe it has to do with problems with the baby’s ability to wake up (known as sleep arousal) and a problem the baby’s body might have with detecting a buildup of carbon dioxide in the blood.

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