06/14/2026
Myth 1: “Cold water causes muscle cramps or shock.”
Truth:
There is no scientific evidence that applying cold water to a hot horse causes cramps, colic, or shock. In fact, cold water is the fastest and safest way to lower a horse’s body temperature.
However - I want to share MY OPINION - I think we should be mindful of the horse's response to the water unless the horse is physically in distress as in a true medical emergency. Using a water that is temperate and starting on the lower legs working your way up can provide less shock and more predictability for the horse. I also think that we shouldn't be working horses to the point of heat stress. We should be creating an environment where the horses enjoy the cooling experience after appropriate work load in based on the temperature, humidity and the horse's general body response to temperature.
Myth 2: “You must scrape off water immediately.”
Truth:
Scraping water reduces the cooling effect. Leaving cold water on the skin extends evaporative and conductive cooling, helping heat continue to escape.
Best practice: Apply cold water continuously 10-15 minutes and let it run off naturally, especially in very hot or humid conditions.
Were you taught to scrape immediately after hosing? When did you change your mind—or have you? I know that I still have to pause
Research Reference: Takahashi et al. (2020), Journal of Equine Veterinary Science.