This is my Tip #1 because I think it needs to be #1. Before you can have a healthier and happier life you need to be thankful and you need to feel the joy of thankfulness. I need to be reminded of it every day.
I believe this is a skill and can be learned like any other skill. Here's a very useful article from the New York Times which talks about the research that has been done about feeling gratitude. The results are quite impressive and, more importantly, the article also tells us how to increase our gratitude with some simple steps.
And here is a quote that I found in the website Thankfulfor.com that summarizes what I feel:
Gratitude unlocks the fullness of life. It turns what we have into enough, and more. It turns denial into acceptance, chaos into order, confusion into clarity.... It turns problems into gifts, failures into success, the unexpected into perfect timing, and mistakes into important events.Do you have any tips to feel more grateful? Let us know!