What are the benefits of taking a cold water bath in summer for the body?

　　Increase alertness.

　　Taking a shower with cold water in the morning will stimulate your body and take deep breaths naturally, which can increase the oxygen intake in the body, speed up the heartbeat, promote blood circulation throughout the body, and warm the body. You will feel refreshed and full of energy throughout the day.

　　Improve hair and skin healthy。

　　Hot baths can dry out the skin, while warm baths tighten the skin, shrink pores and prevent clogging. In addition, warm water baths can help "seal" the pores of the skin and scalp to prevent dust from entering. Cold or warm water can also help prevent your skin from losing the protection of its natural oils too quickly, says Dr. Jessica Krant, a dermatologist in New York City. When it comes to hair care, cold showers are good for the health of your hair follicles, making your hair shinier and healthier.

　　Relieve muscle soreness.

　　Speeds recovery after exercise. A study from the University of Ulster in Northern Ireland found that taking a cold shower after exercise can relieve muscle pain. The study involved 17 relevant studies and 360 participants. Research results show that after participants take a 24-minute cold water bath (water temperature 10 to 15 degrees Celsius) after resistance training, cycling or running, they can effectively relieve muscle soreness symptoms 1 to 4 days after exercise.

　　Reduce stress.

　　One study found that uric acid levels in participants were significantly reduced after taking a shower. Plus, levels of the antioxidant reduced glutathione (GHS), which keeps other antioxidants at optimal levels, are increased. These can help relieve stress, enhance stress and even disease tolerance.

　　Relieve depression.

　　Taking a shower can strongly stimulate the "cold receptors" in the skin, causing peripheral nerve The terminals send a large number of electrical impulse signals to the brain, thereby improving mood and relieving symptoms of depression. One study found that "cold bath therapy" also has analgesic properties without significant side effects and does not create dependence. The therapy includes 1 to 2 cold water baths (water temperature 3 degrees Celsius) for 2 to 3 minutes each time, with a 5-minute rest in between.