The infant mortality rate in the US dropped 15 percent from 2005 to 2014, according to a new report. In that same time frame, sudden infant death syndrome, or SIDS, also saw a major drop, declining by 29 percent. The results of the report come as a pleasant surprise, especially given the onslaught of toxins in our environment—to which infants are most susceptible. Infant mortality rate is also a great indicator of a country’s overall health.