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CERUMEN? Apa tu? Ear Wax?

Kawan kawan tau ke cerumen tu apa?.. Rupenye ear wax ye..
-boleh meningkat produktivitinya tatkala stress, ketakutan dan kegelisahan.
-Ada jenis jenis gak ye.. secara genetik tu..
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Cerumen is produced in the outer third of the cartilaginous portion of the human ear canal. It is a mixture of viscous secretions from sebaceous glands and less-viscous ones from modified apocrine sweat glands.^[2] The primary components of earwax are shed layers of skin, with 60% of the earwax consisting of keratin, 12–20% saturated and unsaturated long-chain fatty acids, alcohols, squalene and 6–9% cholesterol.^[3]

Fear, stress and anxiety result in increased production of earwax from the ceruminous glands.^[4][5]

There are two distinct genetically determined types of earwax: the wet type, which is dominant, and the dry type, which is recessive. East Asians and Native Americans are more likely to have the dry type of cerumen (grey and flaky), whereas Caucasians and Africans are more likely to have the wet type (honey-brown to dark-brown and moist).^[6] Cerumen type has been used by anthropologists to track human migratory patterns, such as those of the Inuit.^[7] Wet-type of earwax is dominant in Ainu of Japan, in contrast to Japanese people.^[8] The consistency of wet type earwax is due to the higher concentration of lipid and pigment granules (50% lipid) in the substance than the dry type (30% lipid).^[3]