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You don't need words to calm a grumpy kid. Parents around the world use a magic touch

Modern parents are told to TALK with an agitated kid to improve their mood. But in many cultures, mom and dad opt for a soothing caress to induce tranquility. Neurologists explain why it works.
Jose Grajeda and daughter, Victoria. <strong>"</strong>If I wanted to go to sleep as a child, I would go cuddle with my mom and she would give me <em>piojito</em>," he says — Spanish for "little lice." The late Peruvian linguist Martha Hidlebrandt described <em>piojito</em> as "gently scratching the scalp of a child as if he were being relieved of the itching of imaginary lice" — hence the name.

When it comes to settling down young children, parenting advice focuses mostly on one tool: What to say.

If the toddler starts to have a tantrum, say this. If a child can't go to sleep, say that. And if you wind up yelling in the process, well, there's even a script for how to apologize.

But all around the world, many parents turn to another tool to soothe a crying child and settle them to slumber. And it's totally silent.

Instead of talking, many parents touch their child. But it's not just any type of touch. Oh no! This touch occurs at a particular speed and with a particular pressure.

After decades of research, neuroscientists are beginning to understand how our skin senses this specific type of touch and how that sensation lights up regions of the brain to alter our

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