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A Scientific Perspective on the Cry It Out Method in Infant Sleep Training
When I welcomed my first child into the world, I was unaware of the multitude of debates that would arise in parenting circles. From breastfeeding versus formula feeding to cloth versus disposable diapers, each choice seemed to spark intense discussions among fellow parents. One of the most contentious topics, however, centers around infant sleep methods, particularly the “cry it out” (CIO) approach. This method, which involves allowing an infant to cry until they fall asleep, often leads to heated opinions from other parents, creating a sense of pressure for those navigating sleep training options.
Research indicates that every child is unique, and what works for one family may not suit another. Various strategies exist, including co-sleeping, swaddling, and using infant swings, as parents attempt to find solutions for sleepless nights. Among these, the CIO method often garners the most criticism, as many parents express concern over the potential emotional consequences of letting their baby cry alone.
However, emerging evidence suggests that the CIO method may not be as detrimental as some fear. A recent study published in the journal Pediatrics investigated the cortisol levels of infants subjected to the CIO technique and found that these babies did not experience significant stress while crying. The researchers concluded that methods like “graduated extinction,” where parents check on their infants at intervals, and “bedtime fading,” where bedtime is adjusted based on the infant’s fussiness, resulted in infants falling asleep more quickly and exhibiting lower stress hormone levels than those who were cuddled to sleep.
In our family, we implemented the CIO method with both of our children. When our daughter reached six months, we recognized she was waking due to habit rather than necessity. After consulting our pediatrician, we found guidance in a resource by Dr. James Harrison, who emphasizes the importance of establishing a consistent sleep schedule through techniques that allow infants to learn to self-soothe. While the process was challenging—listening to our child cry was difficult—the positive impact on our family’s sleep quality was undeniable.
It’s crucial to clarify that parents who utilize the CIO method are not unfeeling. The emotional toll of hearing a child cry can be more profound for the parents than for the child. If you are a parent struggling with sleep deprivation, know that choosing the CIO method does not reflect poorly on your parenting. For those who have faced judgment for their sleep strategies, remember, you are not alone. Scientifically, evidence supports that allowing infants to cry themselves to sleep does not harm their well-being. So, trust your instincts regarding your child’s sleep patterns, and disregard the criticisms from others.
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In summary, while the CIO method of sleep training may provoke strong opinions, scientific research supports its effectiveness without detrimental effects on the child. Each family must determine the best approach for their unique situation, free from external judgment.