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05 January 2009 @ 09:18 pm
Physics? Biology?  
Why does cold tomato juice feel colder than cold soda? Is it because it's thicker and the "cold content" of a given volume of liquid is greater?
 
 
Xiphias Gladiusxiphias on January 6th, 2009 04:46 am (UTC)
Besides the other reasons given -- could the sensation of carbonation itself be a distraction from other sensations?

In other words, perhaps your nerves are just too busy sending you "things are a-poppin' in my mouth" messages to send you as many "things are cold" messages?
Bladerunnerbldrnrpdx on January 6th, 2009 06:27 am (UTC)
The carbonation is actually a separate, and therefore contributing, sensation. When I was interning at a ENT/Head & Neck clinic, one of the exercises the doctors would teach someone post-partial/hemi/full-on laryngectomy who was having trouble with safe swallowing was to gargle *vigorously* with something cold & carbonated. Preferably something like 7-Up or Sprite (less sugar and other assorted crap), but basically Cold & Carbonated. It provided all kinds of sensation to the areas that could still feel. It helped build up the sensory receptors that led to having a safer swallow again. The research (which was done by the doctors at this clinic) showed that the carbonation made a significant difference in how well (quickly and effectively) the patients learned to swallow safely again.
Janet Miles, CAP-OMjanetmiles on January 6th, 2009 04:24 pm (UTC)
That's fascinating! Thank you.