Sudden Infant Death Syndrome leads all other causes in wrenching infants from their parents. SIDS is still not very well understood. One study uncovered the cause in about 2% of SIDS deaths. According to the study results, some children lack an enzyme necessary to use stored food energy - they lapse into a coma and die if they go too many hours without eating. Scientists are working on a test for this disorder. In the meantime, infants with a family history of SIDS should be fed at least every 4 hours. Each time a cause of SIDS is discovered, we come a little closer to preventing this horrible event.