Listen to Increase Happiness online. Increase Happiness is an Instrumental language song and is sung by 耳鳴り 専門医. Increase Happiness, from the album 耳鳴り 改善 - 質の良い睡眠, おとなの子守唄, was released in the year 2019. The duration of the song is 5:17. Download Instrumental songs online from JioSaavn.