I cannot tolerate cold water. I tend to feel more and more thirsty upon drinking iced water, so I started drinking warm/normal water.
Let's see the dangers of cold water:
Blood vessels shrink
When you drink cold water, your blood vessels tend to shrink. Not only this, it hinders hydration and restricts digestion as the body starts expending energy to regular its temperature. This can cause significant water loss and dehydration. I guess this is one reason I feel more and more thirsty when I gulp iced water. (Fortunately, I have quit drinking cold water)
Immune Function Affected
If you drink iced water after a meal, you are putting your body at a risk of excess mucus production, which can affect immune function, making you vulnerable to viral infections, illnesses, and colds.
Unwanted fat deposition
If you drink cold water while eating food or immediately after, you face the risk of fat deposition in the body, as water temperature solidifies fats from the food. As a result, the body finds it difficult to digest unwanted fats.