Increases immunity and blood circulation
Penetrating the body with cold water after taking a shower can increase blood circulation, which is passed through arteries to every part of the body. Increased blood circulation can also help with some types of skin or heart problems as well as low blood pressure. Helps 'clear' clogged arteries and boosts the immune system.
Healthier skin and hair
Hot water can dry out your skin and hair. After you finish the washing process, finally use cold water, it is a natural way to narrow the cuticles and pores. It helps the natural oils on the skin and scalp not to go away so quickly along with the water. By maintaining a certain level of oil, you will have soft, shiny hair that above all looks natural. This technique also helps to keep the scalp clean.
It wakes you up
We all have that feeling that after taking a warm shower in the morning, we want to go back to our bed, right? In this case cold water is your savior. While low temperature water touches your neck, it makes you breathe deeply. The level of oxygen absorbed increases, as does the heart rate. Blood is pumped faster and more throughout the body giving you a natural feeling of energy. You will be ready to go to work!
Reduces the level of stress and depression
Cold water has also been found to lower the level of uric acid and increase that of glutathione, an antioxidant that is considered the most essential for the body's health. Another study has found that cold water therapy enhances mood and has anti-depressant effects with zero negative effects or the risk of developing addiction.
Relieves muscle pain
A cold water bath after running or cycling was quite good because it also prolongs the effect of these activities on the muscles of the body.
Note: The first time you try it you should consider doing it with some sort of rule. You should start with the legs, then continue with the hands, neck, and finally the back.
Source: Bustle