Research presented today at the 28th EADV Congress in Madrid shows, for the first time, that exposure to common air pollutants known as particulate matter (PM) is linked to hair loss in humans.
Oct 09, 2019
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There is now a multitude of therapies to treat cancer, from chemotherapy and radiation to immunotherapy and small molecule inhibitors. Chemotherapy is still the most widely used cancer treatment, but chemotherapy attacks ...
Oct 02, 2019
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The ear's tiny outer hair cells adjust the sensitivity of neighbouring inner hair cells to sound levels rather than acting like an amplifier, suggests a new study published today in eLife.
Sep 24, 2019
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Scientists have determined a new way to protect the hair follicle from chemotherapy in an effort to prevent hair loss as a result of cancer treatments.
Sep 12, 2019
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Women who choose to shave or wax their pubic hair might not be raising their risk of sexually transmitted diseases (STDs) after all, according to a new study that found no connection between "extreme" grooming and chlamydia ...
Sep 04, 2019
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At least 17 children developed so-called "werewolf syndrome" in a major medicine mix-up in Spain, the health ministry said Wednesday.
Aug 28, 2019
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Using genetic tools in mice, researchers at Johns Hopkins Medicine say they have identified a pair of proteins that precisely control when sound-detecting cells, known as hair cells, are born in the mammalian inner ear. The ...
Aug 05, 2019
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(HealthDay)—The sad sight of a receding hairline is not limited to men, a dermatologist says.
Aug 02, 2019
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Dear Mayo Clinic: Can anything be done for hair loss that is likely hereditary? If so, what should I look for when choosing a hair regrowth product?
Jul 30, 2019
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Japanese scientists have developed an efficient method of successfully generating hair growth in nude mice. The new method can be scaled up and therefore shows great potential for clinical applications in human hair regenerative ...
Jul 29, 2019
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Hair is a protein filament that grows through the epidermis from follicles deep within the dermis. The fine, soft hair found on many nonhuman mammals is typically called fur; wool is the characteristically curly hair found on sheep and goats. Found exclusively in mammals, hair is one of the defining characteristics of the mammalian class. Although other non-mammals, especially insects, show filamentous outgrowths, these are not considered "hair" in the scientific sense. So-called "hairs" (trichomes) are also found on plants. The projections on arthropods such as insects and spiders are actually insect bristles, composed of a polysaccharide called chitin. There are varieties of cats, dogs, and mice bred to have little or no visible fur. In some species, hair is absent at certain stages of life. The main component of hair fiber is keratin.
The hair can be divided into three parts length-wise, (1) the bulb, a swelling at the base which originates from the dermis, (2) the root, which is the hair lying beneath the skin surface, and (3) the shaft, which is the hair above the skin surface. In cross-section, there are also three parts, (1) the medulla, an area in the core which contains loose cells and airspaces (2) the cortex, which contains densely packed keratin and (3) the cuticle, which is a single layer of cells arranged like roof shingles.
This text uses material from Wikipedia, licensed under CC BY-SA
