CHICAGO (Reuters) - Babies who die from sudden infant death syndrome make low amounts of the message-carrying brain chemical serotonin needed to regulate sleep, breathing and heart rate , U.S. researchers said on Tuesday.
Yahoo! Buzz US: Top Stories, Yahoo Buzz
Wed, 02/03/2010 - 6:31am
CHICAGO (Reuters) - Babies who die from sudden infant death syndrome make low amounts of the message-carrying brain chemical serotonin needed to regulate sleep, breathing and heart rate , U.S. researchers said on Tuesday.