Why is sweat yellow?
Sweat is the main product produced by most mammals, which is primarily composed of water and other minute elements. Contained within the human body are glands that are responsible for producing physical bodily secretions. The recognized type of gland that is primarily responsible for the producing sweat is the sweat gland. Sweat glands are typified into eccrine glands and apocrine glands. The eccrine glands are the glands responsible for the sweating of the hands and the feet and on the forehead as well. Although this type of gland is also found under the arms, it is just minutely distributed to such area. Apocrine glands, on the other hand, are the glands that are commonly found in the axillary area or the underarms, and the anus. This gland is known to be highly active when an individual reaches the pubertal stage of life.
As the mechanism of perspiration or sweat is under the control of the sympathetic nervous system, sweating is known to regulate one’s body temperature, as it gives off heat that has excessively piled up in one’s body. As an individual engages into various physical activities, it is expected that after a certain amount of time, the person is already sweating. But once the sweat has dried up, it can be observed that most shirts have yellow stains on the underarm area. In this case, sweat is considered to be yellow because of the kind of sweat being produced by the type of sweat gland found under the arms, which is the apocrine gland. The apocrine gland produces sweat that contains protein and carbohydrates, which are the culprit for making sweat obtain the color yellow. the protein and carbohydrates interact with the other components of sweat, leaving obvious yellow stains on the clothes’ underarm regions.