Stress-Set-Go: Say Hi To Vitamins And Bye To Stress!  

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princywilliam
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Joined: 12/5/2018
Topic  Stress-Set-Go: Say Hi To Vitamins And Bye To Stress!       Flag »  Reply »
Our skin is made up of three layers:TheĀ PhysioTru Review outermost is called the Epidermis. This consists mainly of cells called Keratinocytes, made from the protein keratin (also the material in hair and nails). Keratinocytes form several layers that constantly grow outwards as the exterior cells die and flake off. It takes roughly five weeks for newly created cells to work their way to the surface. The epidermis harbours defensive Langerhans cells, which alert the body's immune system to viruses and other infectious agents.

A deeper skin layer known as the Dermis gives the organs their strength and elasticity thanks to fibers of collagen and elastin. Blood vessels here help regulate body temperature by increasing blood flow to the skin to allow heat to escape, or by restricting the flow when it's cold. A network of nerve fibers and receptors pick up feelings such as touch, temperature, and pain, relaying them to the brain.

The dermis houses hair follicles and glands with ducts that pass up through the skin. Sweat glands bring down internal temperature through perspiration while ridding the body of the waste fluids. Apocrine glands, which develop during puberty, produce a scented sweat linked to sexual attraction that can also cause body odor, especially around the armpits. Sebaceous glands secrete oil-like sebum for lubricating the hair and skin.The skin's base layer is the Subcutis, which includes a seam of fat laid down as a fuel reserve in case of food shortage. It also works as insulation and cushions us from knocks and falls.

Our skin color is due to Melanin, a pigment produced in the epidermis to protect us from the sun's ultraviolet rays. Dark-skinned people produce more numerous and deeper-colored melanin particles. People with the darkest complexions are native to tropical regions, particularly those with few densely forested areas.Fair skin is an adaptation found in people from northern latitudes where solar rays are relatively weak. Here the benefits of dark skin are outweighed by the need for bone-strengthening vitamin D, produced through exposure to UV rays. But hotter, sunnier environments bring the risk of serious skin damage.




  Saturday, February 23, 2019 at 3:57:02 AM

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