Baby massage ameliorates neonatal jaundice in full-term newborn infants.

That massage which feels so good to you can actually help tame high bilirubin levels in newborn breastfed infants. A massaged group of term breastfed infants demonstrated higher stool frequency and lower bilirubin levels over the first few days of life compared to a control group that received no baby massage. Massage over various parts of the body stimulates the vagus nerve and heightens the production of food-absorbing hormones while increasing the secretion of gastric and pancreatic fluid. This increases the amount of milk the infant suckles and enhances milk digestion.
Chen JSadakata MIshida MSekizuka NSayama M. Baby massage ameliorates neonatal jaundice in full-term newborn infants. Tohoku J Exp Med. 2011;223(2):97-102.
 For the full article see https://www.jstage.jst.go.jp/article/tjem/223/2/223_2_97/_pdf