Everyone wants to know how to keep babies from crying. That is why a video posted by Dr. Robert Hamilton of California received 1.7 million views in its first day on YouTube. Hamilton has been practicing this technique on babies he sees in his practice for 30 years.

He calls it “The Hold.” The technique includes three steps: First, fold the baby’s arms gently over each other, and hold them with your left hand. Next, hold the baby’s bottom with your right hand. Then bounce the baby gently while holding it at a 45-degree angle. In Hamilton’s video, the babies become calm after just a few seconds.