Humming is the act of producing a sound with the vocal cords while keeping the mouth closed. This sound is often a continuous tone and can vary in pitch and volume. Humming is commonly used in music as a way to create melodies without using words. It can also serve as a form of self-soothing or relaxation. Many people hum when they are happy, focused, or lost in thought. Humming can be found in various cultures and is often associated with music and singing. It can also be a way to express emotions or enhance creativity while working on tasks.