The slightly gross reason why nursing your baby can make them healthier. #sciencebaby #baby #science #babies #firsttimemom #firsttimedad #parenting #newborn #newbornbaby #cutenewborn #cute #breastfeeding #breastmilk #nursing #ebf #exclusivepumping #expressedmilk #expressedbreastmilk #formula #milkducts #virus #antibodies #immunity #health #babiesoftiktok #babytiktok #babytok #learnontiktok #fyp