1. Help digestion: mint water can promote gastrointestinal peristalsis, accelerate food digestion and relieve indigestion.

2. Relieve headache: Mint water has certain analgesic effect, which can relieve mild headache and migraine symptoms.

3. Relieve stress: Peppermint has a calming effect and can relieve stress and anxiety.

4. Cool and relieve summer heat: mint water has a cool taste and the effect of relieving summer heat, and can be drunk in summer.

Disadvantages:

1. Allergy: A few people are allergic to mint, and drinking mint water may cause discomfort or allergic reaction.

2. Affect sleep: Drinking mint water at night may cause insomnia or dry mouth, affecting the quality of sleep.

3. Consume kidney-qi: mint has the function of clearing away heat and toxic materials, but long-term drinking in large quantities may consume kidney-qi.

4. Affect the efficacy: Mint has certain medicinal properties, which may affect the efficacy of some drugs and should be drunk under the guidance of a doctor.