What is the reason for studying Sudden Infant Death Syndrome?

Because of brain abnormalities or defects.

Explanation:

Health care providers and researchers do not know what is the the exact cause behind these deaths, but there are many theories which describes these deaths of infants.

The suggestion of most research evidence that infants who are born with are born with brain abnormalities or defects will die from sudden infant death syndrome (SIDS). A network of nerve cells contains these defects that depends on a chemical named serotonin which sends a signal from one nerve to another nerve cell.