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The activity change during puberty suggests that humans communicate through odors. [4] Several axillary steroids have been described as possible human pheromones: androstadienol, androstadienone, androstenone, androstenol, and androsterone. Androstenol is the putative female pheromone. [5]
A pheromone (from Ancient Greek φέρω (phérō) 'to bear' and hormone) is a secreted or excreted chemical factor that triggers a social response in members of the same species. Pheromones are chemicals capable of acting like hormones outside the body of the secreting individual, to affect the behavior of the receiving individuals. [1]
Their water-based secretion represents a primary form of cooling in humans. [8] Apocrine sweat glands are mostly limited to the axillae (armpits) and perineal area in humans. [8] They are not significant for cooling in humans, but are the sole effective sweat glands in hoofed animals, such as the camels, donkeys, horses, and cattle. [9] [10] [11]
Body odour affects sexual attraction in a number of ways including through human biology, the menstrual cycle and fluctuating asymmetry. The olfactory membrane plays a role in smelling and subconsciously assessing another human's pheromones. [8] It also affects the sexual attraction of insects and mammals.
An apocrine sweat gland (/ ˈ æ p ə k r ə n,-ˌ k r aɪ n,-ˌ k r iː n /; from Greek apo 'away' and krinein 'to separate') [5] [6] is composed of a coiled secretory portion located at the junction of the dermis and subcutaneous fat, from which a straight portion inserts and secretes into the infundibular portion of the hair follicle. [7]
Many promise to make you more sexually attractive, increase your libido, or act as a trigger for other things that seem just a little too good to be true. You may be wondering: Are the promises ...
This prepares the muscles for the body's natural fight-or-flight response. [20] Organisms rely on many different means of intra-organismic communication. Whether it is through neural connections, chemical messengers, or hormones, [clarification needed] these all evolved to respond to threats, maintain homeostasis and ensure self preservation.
On the other hand, a fit person will start sweating earlier and more readily. As someone becomes fit, the body becomes more efficient at regulating the body's temperature and sweat glands adapt along with the body's other systems. [23] Human sweat is not pure water; though it contains no protein, it always contains a small amount (0.2–1%) of ...