Do you know what the most popular class at Harvard is? Would you guess that it's happiness? 

What's your focus? Do you focus on everything that's going wrong in your life? Are you looking at all the negative things that are happening in the world? OR are you being grateful for everything that you have, whether it be your family, your job or simply that warm, delicious meal? 

So we ask you... What do you have to be unhappy about? 

Not only will you laugh but you'll change your mindset after this video: