Caffeine may protect babies by preventing dangerous drops in oxygen that can cause death, a new Rutgers Health study finds. Sudden Unexpected Infant Death (SUID) is the leading cause of infant deaths between one and 12 months old.Published in the Journal of Perinatology, the researchers’ hypothesis reveals that the number of SUID cases has plateaued in the US at about 3,500 deaths annually for 25 years. The 1990s only saw an initial decline in SUID cases due to increased education campaigns promoting back-to-sleep and safe infant sleep recommendations by the American Academy of Pediatrics.