The Thrills

• It’s refreshing. Think that iced lemonade is the last word in refreshment? Not even close. Cold showers arouse your senses like only a blast of icy, fresh water can.
• You’ll be saving energy. You may not know it, but your home water heater soaks up 14-25% of the money you spend on your energy bill. If you’re not ready to take the plunge into colder waters, you can still "flex your power" with gentler methods, like lowering the thermostat on your water heater to 48 C (120 F). Sip up more tips on the U.S. Dept. of Energy website.
• Chances are that if the water’s cold, your showers will be shorter. This will help you save water as well as energy. It can be hard to part with the steamy suds of a hot shower. Cold water = problem solved: you’re out in a flash and on your way to face and embrace the day.
• It will cool you down on a hot day or after some exercise. A cool, quick rinse-off feels great after a workout, or on a hot September day.
• It will cool you down after a hot date. Need we say more?
• It will prepare you for travel to places where hot water is simply not an option. If you’re not much of a traveler, then you can at least gain an appreciation for the daily feel of life in many places.
• It’s as close as you can get to the feeling of standing under a high mountain waterfall: wild and fresh (trust me). Call me crazy, but it just feels good.

The Chills

• It’s not for the faint of heart. Just like jumping into a cold lake or creek, for the first few seconds, cold showers can be much less than comfortable. I suggest using your preferred "Band-Aid method" to begin each shower: either start by slowly introducing your feet and legs to the water and move the showerhead gradually up, or take a breath and make a splash, wetting the back of your neck and your hair first and letting the water run down the rest of you from there. Once you adjust to the water, you can start enjoying the feeling of showering cold.
• Lowering the water intensity is one way to make the cold water more comfortable, since this lets the water warm slightly as it runs down your body.
• If you live in a cold climate, please consider the sanity of taking cold showers. I’d hate for you to catch a chill on account of saving energy and water.
• Even with a background in early morning swimming, nothing sounds more miserable than a cold shower when I first wake up. But that’s just me. Take your cold showers when you’re ready for a fresh blast of cool water.
• There are times when, no matter how sweet a cold shower might feel, I can’t help but to crank up the hot water. All good things in moderation, I say.
• You know that cold showers might not be for you if afterwards you look (or feel) like this:

References and Resources:

U.S. Dept. of Energy, Water Heating: http://www.energy.gov/waterheating.htm
Calculate how much water you use when you shower and what that costs in USD amounts: http://www.showersmartfaucet.com/imperial.html

Photo Sources:

‘Taking a Cold Shower’: http://www.flickr.com/photos/eenfotograaf/414085906/
‘Our Sammy. 2002-2004′: http://www.flickr.com/photos/jon_d_himes/248864279/