quote: (post)

Originally posted by Sorgo
Your body isn't mean't to pretake to Cold Water. Cold Water is bad for you, especially when thrist comes around. Warm or Hot Water applies within the body tempature. Your guts, intestines, throat, etc are all naturally warming, correct? Well, drinking Cold Water can throw that off balance, being why Warm Water is better for you than Cold Water is.

quote: (post)

Originally posted by Cletus_Kasady
But your body can overheat due to exercise or sport so cold water cools down the organs making them their normal temperature.

quote:

In theory drinking a hot beverage might cool you down, but some cool water
and a fan would do a much better job.

Your body seeks to maintain a constant core temperature (you can think of
this as the temperture of your internal organs) of about 37.5 degrees
Celsius. Temperature receptors are located throughout the body, in the
skin, organs, and spinal cord. Other temperature receptors are found in the
brain, in the anterior hypothalamus. The hypothalamus in large part
coordinates the responses to temperature changes.

When your core temperature rises, the change is sensed by the hypothalamus.
In response, your skin blood vessels dialate, and you begin to sweat. The
output of your heart also increases to keep your blood pressure from
falling.

The warm blood at your skin surface can give up its heat to your
immediate surroundings, depending on the conditions. If its not too hot,
you radiate more heat into the environment than you absorb, and so get
cooler. You can also lose heat through conduction if you come in contact
with something cold (for example, a tile floor), and through convection (if
there is a little wind or you are moving around a bit). Most of the heat,
however, is lost through evaporation of sweat. In fact, as the air
temperture approaches body temperature, nearly all heat loss is through
evaporative cooling.

So, how could a hot drink make cool you off? Well, theoretically, a hot
drink could raise your core temperature beyond the level the environmental
temperature would raise it. This would indicate to your hypothalamus that
you are hotter than you actually are, and cause a stronger than normal
response (stronger blood vessel dialation, more sweating). This line of
reasoning predicts that drinking the drink would make you feel hot
initially, but would cool you down more later. I haven't done this
experiment myself, so I don't know if this actually happens. If it did
work, I suspect the extra cooling effect would be brief.

In practice, drinking hot drinks to cool off doesn't seem a very smart idea
to me. First, the MOST important thing you can do to maintain proper body
temperature in hot conditions is to stay hydrated. Sweating is the most
efficient cooling mechanism we have, and it uses up a lot of water.
However, most hot drinks are things like coffee and tea, and caffeine acts
to dehydrate you. Alcohol does the same, so no hot toddies. I suppose you
could drink hot water, but why would you want to?

Secondly, it is not good practice to deliberately cause your body systems
to overwork themselves. Overtaxing your temperture regulation system could
have serious effects, particularly if you are not well hydrated, the
conditions are extreme, you are overweight or in inadequate cardiovascular
condition, or not acclimated to hot weather.

So, my advice would be to skip the hot water cocktail, and find some shade,
a fan, and a glass of nice, cool lemonade the when you feel the heat.

quote: (post)

Originally posted by Cletus_Kasady
But your body can overheat due to exercise or sport so cold water cools down the organs making them their normal temperature.