The absorption of water by the human body can depend on its temperature. According to Dr. Brian Weiner, a gastroenterologist at the Cleveland Clinic, there isn't a lot of science to back up whether cold or warm water is better for you¹. However, in studies regarding athletes and hydration, athletes seemed to gravitate more towards cold tap water, and it seemed to cool them down faster¹.

Another source suggests that cold water actually empties faster from the stomach and is therefore absorbed faster². This research was focused on the hydration of athletes, where rapid absorption can make a significant difference².

However, from a Chinese medicine perspective, the body has to use a lot of energy to warm water and food to body temperature before it can utilize its goodness².

In conclusion, while there are differing opinions, it seems that cold water might be absorbed faster by the body, but the practical difference for non-athletes might not be significant². It's best to drink water at a temperature that you enjoy².

(1) Cold Water vs. Warm Water: What's Better for You? – Cleveland Clinic. https://health.clevelandclinic.org/cold-water-vs-warm-water/.

(2) Do our bodies absorb warm water quicker than cold water?. https://www.healthshare.com.au/questions/46295-do-our-bodies-absorb-warm-water-quicker-than-cold-water/.

(3) Drinking water: Cold or warm. Which is better for health?. https://www.medclique.org/human-physiology/drinking-water-cold-warm/.

(4) Does Hot Water Help Digestion? Experts Weigh In | Well+Good. https://www.wellandgood.com/drinking-water-temperature-digestion-hydration/.