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Perspiration. Perspiration, also known as sweat, is the fluid secreted by sweat glands in the skin of mammals. [ 1] Two types of sweat glands can be found in humans: eccrine glands and apocrine glands. [ 2] The eccrine sweat glands are distributed over much of the body and are responsible for secreting the watery, brackish sweat most often ...
[30] [46] The main electrolytes of sweat are sodium and chloride, [47] though the amount is small enough to make sweat hypotonic at the skin surface. [48] Eccrine sweat is clear, odorless, and is composed of 98–99% water; it also contains NaCl, fatty acids, lactic acid, citric acid, ascorbic acid, urea, and uric acid. Its pH ranges from 4 to ...
Miliaria, commonly known as heat rash, sweat rash, or prickly heat, [ 1] is a skin disease marked by small, itchy rashes due to sweat trapped under the skin by clogged sweat-gland ducts. Miliaria is a common ailment in hot and humid conditions, such as in the tropics and during the summer. [ 2] Although it affects people of all ages, it is ...
Someone experiences a sudden sensation of heat that can be accompanied by sweating, skin flushing and rapid heartbeat. Related to this is night sweats, where the hot flashes occur at night. Women ...
Harlequin syndrome is a condition characterized by asymmetric sweating and flushing on the upper thoracic region of the chest, neck and face. Harlequin syndrome is considered an injury to the autonomic nervous system (ANS). The ANS controls some of the body's natural processes such as sweating, skin flushing and pupil response to stimuli. [1]
Sweat evaporates from the skin’s surface and cools the body down. Loose-fitting clothing makes that process easier and is less likely to trap heat and odor than synthetic fabrics.
Cholinergic urticaria. Tiny "itchy" wheals and small papular bumps on a reddish background. [1] Cholinergic urticaria or also known as ( CholU) and CU, is a rare form of hives ( urticaria) that is triggered by an elevation in body temperature, breaking a sweat, or exposure to heat. It is also sometimes called exercise-induced urticaria or heat ...
Dermatology. Hyperhidrosis is a medical condition in which a person exhibits excessive sweating, [1] [2] more than that required for regulation of body temperature. [3] Although primarily a being physical burden, hyperhidrosis can deteriorate quality of life from a psychological, emotional, and social perspective. [4]