A new survey shows hydration is the key to happiness.
Those who keep their water intake tend to be more "Optimistic, Energetic, and Successful"
41% of people said those who drink 6 or more glasses of water per day are more likely to say they are very happy, they wake up less tired.
12% of people who drink a lot less said they are happy but more tired and have less engery.
So let's all start chugging water!