Is it really unhealthy to drink ice water?

Drinking ice water in hot summer can solve the dryness and heat of the body, but drinking ice water in summer will make the blood vessels in the intestine and stomach contract rapidly, which will be stimulated by cold things, accelerate gastrointestinal peristalsis, affect digestion and absorption, and lead to indigestion, abdominal pain, diarrhea and other phenomena. Eating too much cold food, especially drinking too much ice, can also lead to gastric mucosal damage, lead to decreased appetite, and lead to stomach problems over time. Drinking too many cold drinks will make the throat mucosa contract when it is cold, and the resistance will decrease, so that bacteria lurking near the throat can take advantage of it and easily cause diseases such as colds.