When mom Kayla McDowell’s son turned 2, she started working with him on a self-soothing technique to help him process difficult emotions. Whenever a tantrum arose, she would follow the same four steps. The results were so life-changing that Kayla filmed and shared a video of the technique on her Instagram page, and the clip went viral. “Big feelings in a little body can be hard for everyone,” Kayla explained in the video. “Tantrums are tough, and I wanted a way to try and help him through them so we could find solutions together.” In the clip, Kayla’s son is pacing the kitchen, overwhelmed by his feelings and unable to communicate what he wants. Then, in a calm voice, Kayla invites him to sit down on the floor. She then asks him to breathe deeply. The little boy takes four deep breaths, inhaling through his nose and exhaling through his mouth …