Try this: Hum your favorite song for the next 20 seconds. Now, don't you feel better? In fact, there's no better way to calm your mind and boost your spirits than by humming a happy tune. Plus, ...

Back in October, we highlighted a feature, i.e. Hum to Search that Google has added to its search tools. This would allow users to search for any song, simply just by humming the tune of it. You may ...