You are what you think.
Many philosophical traditions, Buddhism included point to the centrality of mind in creating our own personal realities. A recent NYTimes article http://well.blogs.nytimes.com/2013/07/01/feeling-stressed-its-probably-harming-your-health/?src=rechp&pagewanted=print by Nicholas Bakalar points to a particular study relating the perception of stress with subsequent mortality.
The belief that we are stressed is itself a powerful stressor and therefore a risk factor for illness. So of course we need to address the sources of our personal stress. But then, perhaps as important, we need to change our attitude towards that stress. But self-identifying as victims we wind up predicting our actual fates. We need to release the belief that we are the sufferers of stress.
Let go of the belief that we are stressed out and we might be less so– and live longer, healthier lives.