It is commonly known that your body language expresses the way you feel. When you feel unsafe, you’ll take a more closed position. When you feel weak, your posture is more huddled. When you feel strong, you stand more upright and when you score a goal your raise your arms into the sky. You express the way you feel in your body language. Nothing new so far.
Amy Cuddy claims it works the other way around aswell. In her stunning TED talk she shows how taking a powerful pose for two minutes makes you actually feel powerful. And when you force yourself to smile, your brains thinks you’re actually smiling and releases fabrics that makes you feel happy. It’s called a reverse brain connection.
So like Barney Stinson (How I met Your mother, tv Show) sais: “Whenever you feel sad, stop being sad and be awesome instead”