Yes, drinking more hot water can promote human metabolism, and help to perspire me and promote gastrointestinal peristalsis, especially for people with cold body. Drinking more hot water can dispel the cold in the body and relieve edema; Disadvantages of drinking ice water: drinking ice water properly can relieve the symptoms of dizziness and headache, thus achieving a refreshing and comfortable effect and effectively helping to reduce the probability of sore throat. But there are many shortcomings, which can cause cough and cold, easily irritate throat and bronchus, and cause cough and bronchitis. Drinking a lot of ice water will stimulate the gastrointestinal tract and accelerate gastrointestinal peristalsis, which is likely to cause gastrointestinal spasm and abdominal pain, especially after strenuous exercise. Moreover, drinking ice water often will also affect gastrointestinal digestion.