Sweat is an important reference point indicating the condition of qi metabolism of the body. Usually, it is good thing to perspire.
The power of the core of the body, the power of inner organs, is weak for those who rarely perspire, and on the other hand, the power of inner organs is active for those having hyperhidrosis.
The extent of sweating is depending on the conditions of the air and of labor, though there is some congenital factor. So it is unusual that one perspires without doing anything when it is cold, or that one does not perspire though he/she does physical work in the hot weather.
Sometimes one perspires during sleep at night with the adequate bedding though the air is not so hot. This indicates inner organs that supposed to rest are being active, and rather the power of inner organs is getting weak.
Physiologically, the same thing can be said when one gets old and he/she tends to sweat easily. Labor means not only the physical activities including sex, but also other things, such as the work that needs extreme mental concentration and meals.
<note>
(1) Those who does not sweat, rarely sweat and have night sweat should receive treatments for a certain period with perseverance.
(2) The problem of sweat is not only the quantity but quality as well. When one feels comfortable with sweating, it indicates good perspiration.
*This article is translated from "Yamai hitokuchi memo" p. 175-6, written by Shoji Kobayashi, 2005. Articles of this book were meant to be written for patients who came to Taishido Acupuncture Clinic.
