I have taken a cold shower in the morning for over ten years, and can attest that I suffer less cold and flu symptoms than other workers in my office. In fact when the flu virus strikes Sydney each winter, I am normally the only one unaffected. When I am in the shower I also do some stretching. I hold onto the top of the shower screen and stretch my spine, to release stress. Which is great, because I have a stressful job. For years I have told others my theory about the benefits of cold showers, but am usually met with derision. So I am glad I found on this website a community of like-minded enthusiasts. I had my blood tested and my white cell count is three times higher than average. So I am sure that a wider scientific study would verify the health benefits of the cold shower. Gerald.