Possibly that. I know that I used to 'shrug' in anticipation of the cold shock when I turned on the shower faucet. But I think more than that - I like the bla

Possibly that. I know that I used to 'shrug' in anticipation of the cold shock when I turned on the shower faucet. But I think more than that - I like the blast of hot water essentially massaging the back of my neck and shoulders. I think the heat had a significant effect on loosening up the muscles and knots, and increasing flexibility and neck movement. The cold showers simply did nothing, and me tensing my body to meet the cold shock didn't help any. I find that I do a bit of both these days - have a hot shower first and do neck stretches in the shower, then turn the water to cold just before I hop out.