The way you think and your emotions is known, without a doubt, to cause problematic releases of serotonin, norepinephrine, etc. So it's possible that you developed anxiety first, and your chemical imbalances were the result.
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1 The basic Xbox 360 will cost about $200. 2  This console has a fairly small memory â only 4 GB. 3  A 250GB Xbox 360 will cost about $300. 4  A 4GB Xbox 360 with Kinect, a motion sensor system which makes gameplay more realistic, will cost about $300. The basic Xbox 360 will cost about $200. 2  This console has a fairly small memory â only 4 GB. 3  A 250GB Xbox 360 will cost about $300. 4  A 4GB Xbox 360 with Kinect, a motion sensor system which makes gameplay more realistic, will cost about $300.