However, some recent research indicates that when the newborn infant is hungry, uncomfortable, or upset, his stress - response systems release stress hormones. He expresses his distress by crying.
हर बच्चा एक जैसा नहीं होता, इसलिए आम तौर पर माता - पिता को तय करना चाहिए कि बच्चे के रोने पर क्या करना बेहतर होगा ।