Which symptom best describes Yang qi exhaustion?

Yang qi exhaustion is often characterized by a deficiency of warmth and energy in the body, which can lead to various symptoms manifesting in a distinctive way. Profuse sweating is one of the primary symptoms associated with Yang qi exhaustion because, when the body lacks sufficient Yang energy, it becomes incapable of maintaining warmth and proper function. This can lead to an inability to regulate body temperature, resulting in excessive sweating, especially during times when one would typically retain heat.

Additionally, this situation can arise in scenarios of extreme fatigue, illness, or weakness, where the body's natural defenses are compromised, further exacerbating the symptom of sweating. The body, attempting to regulate itself in the absence of adequate Yang energy, can lead to a loss of fluid, contributing to overall weakness and the sensation of coldness in the body.

In cases of Yang qi deficiency, the presence of symptoms like high fever would align more with a Yang excess condition, where there is an overproduction of heat rather than exhaustion of Yang energy. Cold limbs may also occur, but they are more indicative of a profound yang deficiency rather than the primary exhaustion symptom. Thirst for hot drinks could signify a desire to restore warmth, but it does not exclusively indicate Yang qi exhaustion.