I remember reading about a study 15+ years ago that was very interesting. They took depressed and non-depressed people. They had a living room set up with a lamp on an end table. The subjects entered the room and attempted to turn on the lamp. The testers actually controlled when the lamp was turned on and off. The results of the test were that the non-depressed people thought they were always in control of when the lamp was turned on or off. The depressed people knew when they caused the lamp to work and when they didn't. The conclusion being that depressed people are more in touch with reality. And maybe that is why they are depressed.
Which brings me to my favorite quote: Reality is stressful, for those who are in touch with it. 
Brenda
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Seronegative spondyloarthropy, iritis, hip bursitis, hypermobility, migraines, DDD L4/L5.