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Posts tagged ‘cortisol’

The Middlemiss Study Tells Us Nothing About Sleep Training, Cry-It-Out, or Infant Stress

Last week, I wrote a post about sleep training and stress, in which I argued that everything we know about stress suggests that sleep training is not harmful.

In response, some people objected that sleep trained babies continue to experience elevated cortisol and significant distress, even after they have stopped crying. In their view, sleep training teaches babies that crying does not help. They haven’t learned to self-soothe or to fall asleep on their own, they’ve simply given up.

What a heartbreaking thought. And one that surely strikes fear in the heart of many parents.

So it’s important to realize that this claim comes from a single small and deeply flawed study of 25 babies, led by Wendy Middlemiss, a researcher at the University of North Texas’s College of Education.

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