I came across these articles and found them very interesting… perhaps a few more ways to invite more joy in your day…

From the September 2009 Scientific American Mind:
Smile! It Could Make You Happier: Making an emotional face–or suppressing one–influences your feelings – by Melinda Wenner

From Miller-McCune Online Magazine:
To Feel Good, Reach for the Sky – New research finds upward physical movements inspire positive memories.

From Greater Good Magazine:
The Helper’s High – Suffering is inevitable. But James Baraz and Shoshana Alexander argue that responding to pain with compassion, care, and generosity is key to a joyful life.