 Parents of infants admitted to the neonatal intensive care unit NICU at AUBMC will be informed about the study by their Attending physician. The medical research assistant will approach only interested and potential participants. An informed consent will be obtained prior to enrollment. All infants admitted to the NICU are eligible. Those will be divided into four equal groups: 1 normal term, 2 normal preterm, 3 sick term, and 4 sick preterm babies, where a normal health state is defined by the medical team as physiologically stable. The medical team considers sick state based on pathological symptoms such as bradycardia, apnea, and hypotension among others. We target collecting video recordings for a total of eighty babies as a pilot number over the period of eight months. Each baby will be recorded for a minimum of twenty four hours. A subset of the eighty babies will be considered as a control group for reference. The control group will be selected based on a normal physiological state excluding babies with sepsis, respiratory distress, and congenital anomalies. 