How to put a crying baby to sleep?  Scientists claim they have found an unstoppable method

How to put a crying baby to sleep? Scientists claim they have found an unstoppable method

How to put a crying baby to sleep?  Scientists claim they have found an unstoppable method

It is the anguish of all young parents and an eternal intergenerational debate. What’s the best way to put a crying baby to sleep? A team of scientists from Japan’s “Kiren Center for Brain Science” told Current Biology on Tuesday that they had found the formula to “provide an immediate solution to babies crying.”

“This is an important question, especially for inexperienced parents, and it can lead to parental stress and, to a lesser extent, child abuse,” says study author Kumi Kuroda.

While many parents put their baby straight back in bed after rocking him in place, Professor Kuroda’s team advises them to walk for five minutes with the crying baby, then sit for another five to eight minutes, still holding the baby before putting it back. okay. in his cradle.

The protocol is based on
The protocol is based on the “transport response” of children.

To accomplish this, the team studied the behavior of about twenty babies carried by their mothers, but believe the effects should be the same with “any parent”.

The Japanese scientist explains that walking with the baby activates the baby’s “transport response”, an innate response found in many altricial mammals – those whose young are immature and unable to care for themselves – such as mice, dogs, monkeys and humans. When these animals pick up their young and start walking, the baby tends to become docile and their heart rate slows down. This discovery deconstructs a number of received ideas such as the one stating that the baby should be left to cry.

But if the simple act of rocking a baby as he walked calms the baby – all the babies studied in the study stopped crying and nearly half of them fell asleep in their mother’s arms – putting him back to bed made a third of them cry. children again within 20 seconds.


Japanese scientists say that when moved, babies automatically match their heart rate to that of the cradling parent. But the change in heart rate, as their body detaches from their mother, can wake them up instantly. That’s why Professor Kuroda’s team advises parents to sit for five minutes before leaving them in the crib.

“As a mother of four, I was very surprised to see the result. I thought the baby would wake up or not depending on how he was lying in bed, “says Kumi Kuroda.” But our experience shows that this is not related to the kindness of the parent’s gesture or the position of the baby. “

“We intuitively listen to other people’s advice on parenting without testing scientific methods. But we need science to understand children’s behaviors, because they are much more complex than we thought, ”concludes the study’s author. Parents are free to test this new Japanese method which, if it doesn’t work, will at least have the merit of making them practice daily physical activity.

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