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According to recent research from Tsukuba, Japan, " In Japan, there is a symptom commonly referred to as ''Hie-sho'', which is a feeling of coldness or chill in a particular part of the body, and it can sometimes be unendurable. This phenomenon is known to occur more frequently in women."
"The present study used synchrotron radiation inicro-angiography (SRMA) to examine the hypothesis that this feeling is derived from a sex difference in the vascular response to coldness. Methods and Results The hind limb of male (Group M) and female (Group F) Wistar rats was exposed to cold and the tissue temperature was recorded. SRMA with a spatial resolution of 26 mu m was used to measure arterial diameter. The reduction in temperature brought on by cold exposure was significantly larger in Group F than in Group M (p
The researchers concluded: " Arteries in the limbs of female rats did not expand as much as those of the males in response to cold exposure, which may explain why women feel the cold more than men."
Sato and colleagues published their study in Circulation Journal (Sex ...