There are four different happy hormones inside all of us, and they each have a specific function that contributes to our overall happiness. We go over each of the hormones, from serotonin to dopamine to endorphins to oxytocin, and explain what they do to trigger joy. Just a few changes to your routine, could make a huge impact on your mood.

New Details in Brutal Stabbing Death of University of Washington Student
14:41

The Secret To Happiness, How To Make The Right Decisions In Life From Romantic Partners To What You Eat For Breakfast
25:57

NEW: Ebola Outbreak Kills 80, Concern Growing About Containment
16:45