Another important benefit of drinking hot water is that it enhances your blood circulation, which is important for proper muscle and nerve activity. In addition, it keeps your nervous system healthy by breaking down the fat deposits around it.
Hot water is particularly beneficial for digestion. Studies have shown that drinking cold water during or after a meal can harden the oil present in the consumed foods. This can create a fat deposit on the inner wall of your intestine, which can eventually result in intestinal cancer. However, if you replace the glass of cold water with hot, you can avoid this problem. In addition, hot water is beneficial to digestion, which is what you want after a meal.
Speaking of digestion, hot water can help to keep you regular, as well as make your bowel movements healthy and pain free. Dehydration can result in chronic problems with constipation. As the stool gets accumulated inside your intestine, the movement of the bowel becomes slower. It is always recommended that you consume a glassful of hot or warm water every morning when your stomach is empty. It decomposes any remnant foodstuffs and makes the movement of the particles smooth and less painful through the intestine.
Article Credit: http://www.lifehack.org/articles/lifestyle/12-unexpected-benefits-drinking-hot-water.html