Thanksgiving is one of my favorite holidays because it brings to our awareness something that can relieve stress and bring greater happiness and contentment to all of us: gratitude.
Even in these times when times are tough for many people, there is still so much to be thankful for, that we can relieve a lot of stress if we focus on that. Those oft-mentioned 'things that really matter in life'--our relationships, our sense of altruism, etc. also tend to be the things that bring us physical and mental health benefits, and help us relieve stress.
Therefore, if you aren't doing so already, I'd like to recommend that that one of the ways you celebrate Thanksgiving this year is to take some time to really reflect on the things that you are grateful for in your life. From the major things--your health, your loved ones, your special talents--to the subtle-but-still-important things--your favorite movies and t.v. shows, the beautiful sunsets that you can enjoy for free, or chocolate.
From now until Thanksgiving, I encourage you to notice and reflect on the things in life that you're really glad to have. I enthusiastically recommend that you maintain a gratitude journal (the gift to yourself that keeps on giving), or join my gratitude group because in doing so, we can all share the good feelings.