The human skin is the outer covering
of the body. In humans, it is the largest organ of the integumentary
system. The skin has
up to seven layers of ectodermal tissue and
guards underlying muscles, bones, ligaments and internal organs.
The two types of skin, hairy and glabrous skin (hairless) Because it interfaces with the
environment, skin plays an important immunity role in protecting the body against pathogens
and excessive water loss. other functions are insulation, temperature regulation,
sensation, synthesis of vitamin D,
and the protection of vitamin B folates.
In humans, skin pigmentation varies among populations, and
skin type can range from dry to oily. Such skin variety provides a rich and diverse habitat for bacteria that number roughly 1000 species
from 19 phyla, present on the human skin
Skin
gets its color from a pigment called melanin. Skin
color can range from very pale to very dark, depending on how much melanin the
body makes. Everyone has the same amount of cells that produce melanin, which
is made in the outer layer of the skin called the epidermis; but not everyone
produces the same amount. The more melanin your body produces, the darker your
skin.
Your skin regenerates itself. “Your
skin sheds its dead skin cells on a daily basis, creating a new layer of skin
every 28 days and dead skin cells can remain on the skin
Dust
is partly made up of dead skin cells. Dust is an accumulation
of many materials, including dirt, animal dander, sand, insect waste, and even
dead skin cells. “In fact, each time you vacuum, you’re picking up dead skin
cells off the floor, the chair, and the walls,
Millions of bacteria live on the skin. “The
skin's surface is home to surprisingly diverse communities of bacteria,
collectively known as the skin microbiota, The harmless bacteria that thrive on
the skin can help immune cells fight disease-causing microbes.”
Pimples are not caused by
dirt or diet. These are common misconceptions,
but there are some common culprits that can offset breakouts. “Acne can
be caused or aggravated by menstruation and/or pregnancy due to changes in
hormone levels, sweating, humidity, some medications, and certain cosmetics or
hair preparations,”
To help treat and prevent acne, I
will recommends washing your face twice a day and after working out with a mild
cleanser. Use noncomedogenic moisturizers and makeup products and oil-free
sunscreens that do not clog pores, and be sure to wash facecloths and makeup
pads and brushes regularly. You should remove all makeup before going to bed,
and wash and change sheets and pillowcases every few days.
Stretch marks
These are caused when the skin is
stretched rapidly (for instance during pregnancy, weight gain, or
adolescent growth spurts or when skin is put under tension
during the healing process, This type of scar usually improves in appearance
after a few years
Filler injections
Filler
injections of collagen can
be used to raise atrophic scars to the level of surrounding skin Risks
vary based upon the filler used, and can include further disfigurement
and allergic reaction
Odor from skin
Smell:
Body
odor comes from a second kind of sweat a fatty secretion produced by the
apocrine sweat glands.
Yum:The odor is caused by
bacteria on the skin eating and digesting those fatty compounds. Breasts are a
modified form of the apocrine sweat gland.
White skin appeared just 20,000 to
50,000 years ago, as dark-skinned humans migrated to colder climes and lost
much of their melanin pigment.
DIET FOR HEALTHY SKIN
Remember: many of the best foods for healthy skin also promote good health overall
1. Eat your vegetables Red, yellow and orange
vegetables like bell peppers and carrots contain carotenoids that can help
reduce the appearance of wrinkles and make the skin look smoother. A variety of
leafy green vegetables offers an array of vitamins and minerals that are vital
for overall health and that's reflected on your face.
2. Low-fat yogurt, like all dairy products,
is full of vitamin A, another nutrient that's important for good skin
appearance. But it also has live bacteria that help regulate the digestive
system, which in turn is reflected in skin that glows.
3. In addition to drinking plenty of water
pour yourself some green
tea. Not only
does it warm your belly and give you a sense of well-being, it's got
anti-inflammatory compounds that soothe the skin and may even reduce the risk
of skin cancer.
4. Salmon contains
essential Omega-3 fatty acids the body can't produce on itself own. They
strengthen cell membranes, allowing for a better flow of nutrients and holding
water in so your skin looks dewy.
5. Healthy oils also contains those fatty
acids. So skip the heavy, gloppy dressing and finish your salad with a little olive
oil and
vinegar. olive or coconut are also great moisturizers to slather on the outside, and much
cheaper and probably purer and more chemical-free
6. Don't consider chocolate a guilty
pleasure. Make the guilt go away by reminding yourself that the flavanols it
contains make your skin look firmer and more resilient. Avoid the cheap candy
bars; it's a rich dark chocolate that provides all the benefits.
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