Which child suffers more emotionally? The one that undergoes sleep training and has emotional distress for a few nights and afterwards occasionally wakes during the night and goes back to sleep on their own, or the child that for years, whenever they wake during the night undergoes emotional distress until their caregiver wakes, is able to get up, and get to the child?
The first one, because in the second case the caregiver actually comes and comforts them.
Stress and damage during certain phases of growth and development might not be reversible. That's what the researchers were talking about "experiences of stress may program the HPA (hypothalamic-pituitary-adrenal) axis to be more stress reactive,"
