1, salt water can clean the mouth, diminish inflammation and sterilize, gargling with salt water can not only help clean oral bacteria, remove oral odor, effectively alleviate the occurrence of oral inflammation, but also prevent tooth decay.

2, physiological saline can help the human body to maintain the balance of osmotic pressure in the body, effectively replenish excessive sweating, resulting in the loss of sodium and water in the body.

3, clearing heat and relaxing bowels, drinking light salt water on an empty stomach after getting up in the morning can help the human body clean up the gastrointestinal tract and prevent constipation.

4. Soaking your feet with salt water can warm meridians and dredge collaterals, promote blood circulation, relieve fatigue and help you sleep. Salt water can also help your feet to diminish inflammation and sterilize, and effectively prevent the symptoms of beriberi and foot odor.