There is a ton of compelling research about the benefits of exposure to cold (ice baths, cold showers, etc) on those who suffer from anxiety and depression. I'm interested - has anyone tried this? What have your results been? I decided I'd give it a go this morning with 5 minutes of cold in the shower. I turned the faucet as far to the cold setting as it would go and braced myself for the inevitable shock.... and I got something between lukewarm and cool in return! Who'd have thought that cold groundwater is hard to come by in Phoenix in the summer???