ニューヨーク・タイムズのインスタグラム(nytimes) - 4月19日 12時08分

In 2002, the pediatrician Harvey Karp wrote “The Happiest Baby on the Block,” a book about newborn sleeping and soothing techniques. Since then, it's sold more than a million copies and it’s accompanying DVD is the most watched child-rearing video ever. These days, Karp, who no longer practices medicine, is hoping to sell parents on his new product: a $1,160 robotic bassinet called SNOO. He and his wife, Nina Montée, have raised $30 million in 2 rounds of funding. The SNOO rocks and plays white noise continuously and has sensors that respond to a baby’s cry by changing intensities; it keeps the baby swaddled and fastened inside the crib and can be controlled from afar on a smartphone. “It turns out that in the womb, babies have cues,” Karp said. “So what calms babies down? Bouncing them, rocking them, shushing them, enveloping them, letting them suck. These are all imitative of their experience in the womb.” Karp developed his concept of the “missing 4th trimester” early in his career. Human babies are born about 3 months prematurely, the theory goes, because their heads, which grow rapidly, need to be able to fit through the birth canal. But despite criticisms of that theory, Karp insists that it explains why babies can be lulled back into a womblike “trance” during the first months of life. @_hannahwhitaker took this photo while on assignment for @nytmag. Visit the link in our profile to read more.

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