Today, I could not turn the shower faucet to the right any further. Victory. My first experience with cold showers was excited but short lived. Joel Runyon had a blog post and YouTube video discussing cold showers and how to begin. I was pumped and I gave it a try.
http://www.thehackedmind.com/7-reasons-to-take-cold-showers-and-1-that-really-matters/
1. Cold showers burn fat. There are two kinds of fat in your body: white fat and brown fat. White fat is the bad guy (think the Joker) and brown fat is the good guy (think Batman). White fat is the body fat we all know and struggle to get rid of.
http://www.lifehack.org/articles/lifestyle/surprising-benefits-cold-showers.html
The cold temperatures force your body to re-regulate the body temperature continually, which utilizes many calories. Mark mentions that an evolutionarily retained adaptation to cold water exposure is a layer of protective fat. Therefore, get your cold shower short and sweet and then get out.
http://www.thehackedmind.com/7-reasons-to-take-cold-showers-and-1-that-really-matters/
Cold showers give you attractive hair and skin. If you’d like to reduce the appearance of acne, cold showers could do the job. Hot water dries out your skin, while cold water tightens your cuticles and pores, preventing them from getting clogged.
http://www.lifehack.org/articles/lifestyle/surprising-benefits-cold-showers.html
If a person makes your shower go from hot to cold, they are doing a solid favor for your health and waistline. I invite you to consider five surprising benefits of cold showers! Before we get into the actual benefits of cold showers, let’s establish the simple fact that hot showers are a luxury and not a necessity.
http://www.lifehack.org/articles/lifestyle/surprising-benefits-cold-showers.html
Heat your shower or bath normally. Assuming you aren't constrained to immediately adjusting in a cold pool or during an open water swim, you can use your shower or bath to gradually train your body to adjust to the cold. Turn on your water and allow it to warm up. 2. Step into the shower.
http://www.wikihow.com/Get-Used-to-Cold-Water
Like Karen Tiede, I can't take a proper cold shower because the water doesn't get colder than 50F (10C) in my house. I take a 3 minute shower every morning, accompanied by the breathing exercises of Wim Hof (The Iceman), up to the point where it starts to hurt a little here and there. Works out fine for me.
https://www.quora.com/I-have-started-taking-cold-showers-How-cold-is-too-cold-for-a-shower
In addition to the kitchen faucet, you'll also find faucets in the bathrooms. In fact, most bathrooms will have a faucet in the sink and one in the shower or bathtub. Not all faucets are the same, though. Some may have two handles: one for cold water and one for hot water. Other faucets may consist of one handle that you keep turning in one direction to make the water hotter. When you turn on a faucet, water comes out . This is because there is always water running through the plumbing system in your house.
http://wonderopolis.org/wonder/how-do-faucets-regulate-water-temperature
The faucet handles themselves, though, don't control the temperature of the water. Faucets are supplied with water from two different water lines, one cold and one hot. The hot water line usually comes from a heat source called a hot water heater.
http://wonderopolis.org/wonder/how-do-faucets-regulate-water-temperature
Since it is you who wants to have a very cold shower, you decide what temperature you can stand, I personally wouldn't go for such cold water but those people going for a New Year's dip often in icy lakes do that yearly, so it clearly isn't lethal.
https://www.quora.com/I-have-started-taking-cold-showers-How-cold-is-too-cold-for-a-shower
how cold does shower water get
Shower water gets 10 degree Celsius cold.