There science-linked ways to be happier and healthier. And they're not so hard to do. Jotting down your feelings and star gazing are easy ways to lift your spirits. Here are 22 other easy ways to boost your mood that psychologists and social scientists swear by. We all strive to be happy and healthy. There are a number of small things you can do that will make a big impact on your overall well-being, according to psychologists. That might be reading an adventure story, keeping a gratitude journal or even gazing up at the stars on a clear night. But happiness is something we all have to continuously work at. Here are some of the things that psychologists and social science researchers have found that have the power to lift your spirits and keep them high. Write down 3 things you're grateful for. Flickr/daniel sandoval Keeping tabs on the things you feel lucky to have in your life is a great way to boost your mood. In...