Follow @thepositiveparenting to become a positive parent Erica Komisar, LCSW, is a therapist and parenting expert with 30 years of experience. She warns that sleep training babies under 1 may raise cortisol levels, potentially affecting brain development. Komisar advocates responding to a baby’s cries to foster security, strengthen bonds, and support healthy emotional growth. She recommends gentle sleep approaches that prioritize a baby’s emotional needs. #Momsofinstagram #momlife #momhack #babi