1. Removing foot odor: Tea polyphenols in tea and acetic acid in white vinegar can effectively inhibit the growth of foot bacteria and remove foot odor.

2. Improve sleep: Soaking feet can promote blood circulation, relax nerves and improve sleep.

3. Relieve fatigue: the foot is the second heart of the human body. Often soaking feet can relieve fatigue and improve the body's resistance.

4. Get rid of cold and keep warm: soaking feet in winter can get rid of cold and keep warm, and prevent diseases such as colds.

Precautions:

1. The ratio of tea to white vinegar should be appropriate. Generally, 3-5g of tea and 20ml of white vinegar are soaked in warm water of about 10L.

2. Soak your feet for 20-30 minutes, not too long, so as not to affect your body.

Be careful of burns, the water temperature should be moderate, and don't overheat.

4. People with mild heart disease and hypertension, _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _