The Period of #PURPLEcrying program teaches parents of infants about the normal stage in their babies' development where they cry more than any other time. "PURPLE" is an acronym identifying the frustrating characteristics of infant crying. P: “Peak” of crying, where your baby may cry more each week, the most in month 2, then less in months 3-5. U: "Unexpected," where crying can come and go, and you don't know why. R: "Resists" soothing when your baby may not stop crying no matter what you try. P: "Pain-like" face, where a crying baby may look like they are in pain, even when they are not. L: "Long-lasting," where crying can last as much as 5 hours in a day or more. E: "Evening," when a baby tends to cry more in the late afternoon and evening. Finally, the word "Period" reminds you that the crying has a beginning and an end. The PURPLE program is based on more than 30 years of scientific research on infant crying. It not only teaches parents about crying, but also provides informati...