Eliza | Lactation Consultant, IBCLC on Instagram: "For a baby to have a good suction during breastfeeding, the tongue needs to move in a wave-like (peristaltic) motion, this helps draw milk efficiently from the breast. In this clip, the baby is sucking on my finger. When I gently lower the bottom lip, notice how the tongue doesn’t stay cupped and sealed around my finger 👇 This suggests that the tongue may not be maintaining a strong peristaltic movement or full contact, both essential for effec