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The amount of sweat glands varies across the human body, being highest in hand and foot regions (200–600 sweat glands per cm 2). [19] The response of the skin and muscle tissue to external and internal stimuli can cause the conductance to vary by several microsiemens. A correctly calibrated device can record and display the subtle changes. [21]
Hyperhidrosis is a medical condition in which a person exhibits excessive sweating, [1] [2] more than is required for the regulation of body temperature. [3] Although it is primarily a physical burden, hyperhidrosis can deteriorate the quality of life of the people who are affected from a psychological, emotional, and social perspective. [4]
Many diseases cause sweat gland dysfunction: Acromegaly, a result of excess growth hormone, causes the size of sweat glands increase, which leads to thicker skin. [71] Aquagenic wrinkling of the palms, in which white papules develop on the palms after exposure to water, can sometimes come with abnormal aquaporin 5 in the sweat glands. [72]
In 2006, researchers uncovered that primary palmar hyperhidrosis, referring to excess sweating on the palms of the hands and feet, maps to the gene locus 14q11.2-q13. [ 4 ] Based on previous research using mice and rats, researchers looked towards the role of aquaporin 5 (AQP5), a water channel protein, in human individuals with primary focal ...
Acquired idiopathic generalized anhidrosis appears to have a variety of etiologies. Theoretically, dysfunction or degeneration of cholinergic sympathetic nerve fibers involved in sweating (sudomotor neuropathy), dysfunction of acetylcholine receptors and/or cholinergic signals (idiopathic pure sudomotor failure may fall under this category), and primary failures of the sweat glands with ...
Public health experts are warning of a ‘quad-demic’ this winter. Here’s where flu, COVID, RSV, and norovirus are spreading
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 ]
These sweat glands are in part activated by compounds called catecholamines, which are secreted in times of stress. From a dermatological standpoint, body odor isn’t an unhealthy thing, either ...