Whistling a happy tune may have come from a childrens song, but it does its share of work in dispelling negativity away. Let me cite a story to expound on its powerful effect.
Ray was the kind of person who generally did well on reports and presentations. His professors all had a good impression of him. Still, when it came time for the mock defense for his thesis, he was as nervous as a prey cornered by a predator. His stomach was doing cartwheels, and he just couldnt do enough breathing exercises to calm himself down. Then, he remembered a song he used to sing as a kid
Top of the World by The Carpenters.
Ray started humming the tune softly to himself. In just a few seconds, he felt his nausea dissolve. He found his confidence and resolve returning.
You can do the same thing when youre sad, angry or anxious. Find a happy tune to hum, and this will quickly reinforce positive emotions and positive thinking.
Resource – Be Smarter