Reduced Stress
Stress is a common mental problem for many people in the modern world. When people are stressed, the body releases a hormone called cortisol. Low levels of cortisol in the body, therefore, would help reduce stress. Some studies have found that taking cold showers regularly or immersing the body in a cold bath could cause a significant drop in cortisol levels. Also, this activity may result in the hardening process. It means that the nervous system becomes used to moderate stress levels over time so that you can deal with stressful situations better in the future. [8]
Boost Alertness
If you are looking for a simple way to wake up and stay alert in the morning, taking a cold shower may work. Low temperature may stimulate more electrical impulses to the brain, thus bringing a high state of alertness. Also, the cold may make you take deeper breaths, which eventually reduces the overall CO2 levels in the body and helps you feel more concentrated. The release of more happiness hormones called endorphins can also increase energy levels, clarity, and boost alertness. [9]
