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sonal

Oily skin - Genetic mutation gone bad?

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Most of us with acne usually have very oily skin. Until about 100 years ago, this would have been an advantage since there were no creams, lotions etc. to moisturize. Also people then had to do hard labor everyday. Either grow your own food, go hunting, collect firewood. Also everything to eat was made from scratch, no preservatives etc. Oily skin can withstand cold temperatures as well as hot temperatures quite well. But now with our sedentary lifestyle, everything has changed. We no longer eat fresh food, our food is pumped with so many pesticides, antibiotics, hormones and what not. No wonder people living on those islands (Papau Guinea?) dont have any acne.

I am trying to eat more fresh fruits and vegetables but its hard when you have a barbeque at your workplace and the only things available is greasy burgers, chips and sugary coke...

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You think sebum moisturizes skin? :)

.

Yes, isn't it? Imagine there were no artificial moisturizers etc. like in the olden days. Would it be better to have an oily or dry skin then? But nowadays, it seems we are not using our body what it is originally intended for and using artificial products and machines for everything. Now it is better to have dry skin instead of oily skin because its easier to apply moisturizer from outside instead of trying to remove oils from inside...

Also research has proved that acne increases significantly when people abandon their traditional fresh food diet and adopt the Western style, processed and fatty foods diet like the Eskimoes.

I am originally Indian and most of the Indians (around 70% ) are vegetarians. But we tend to eat lot of fried foods too. I think best is to eat raw and fresh fruits and vegetables, which is really hard when you see the person next to you gulping down a juicy sandwich and having no effect whatsoever on their skin...

Some people say if sugar and oily things are bad for your body then why do your taste buds crave it so much. Well it might be evolutionary. In the earlier days, it was quite hard to find sweet things to eat, even naturally sweet things like fruits and stuff. But we do need calories to function. So thats why probably our body is programmed to like sweet and oily stuff because it gives more calories. But now in these times of abundance, unless you live in Ethiopia, getting sweet and oily stuff to eat is not a problem at all. In fact, it has become more easy to eat this stuff instead of fresh fruits and vegetables especially if you have to eat outside in restaurants...

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The American Dermatology website says that food has no connection to acne when repeatedly it has been shown that it significantly does have an impact. Genetics also probably plays a role but the type of food can be a definite trigger. I have never seen starving people from Ethiopia having acne. Acne is mainly a disease where the lifestyle is sedentary and food is plenty, something to think about...

Here's another link to show diet does affect acne.

http://seattletimes.nwsource.com/html/heal...dietacne13.html

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Another thing I noticed is that people with acne due to very oily skin are generally on the thinner side. Like for me, I generally dont put on weight even if I eat a lot of fatty stuff, my skin does get more greasy and oily though. So I think some people just put on weight when they eat fatty stuff but their skin doesnt become oily and get acne. But acne prone people excrete that extra fat through sebum from their skin causing breakouts...

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Another thing I noticed is that people with acne due to very oily skin are generally on the thinner side. Like for me, I generally dont put on weight even if I eat a lot of fatty stuff, my skin does get more greasy and oily though. So I think some people just put on weight when they eat fatty stuff but their skin doesnt become oily and get acne. But acne prone people excrete that extra fat through sebum from their skin causing breakouts...

I can attest to this. I'm 19, 134lbs Ive got really greasy skin and I can eat like theres no tomorrow and gain no weight at all.

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You think sebum moisturizes skin? :)

Yes, isn't it?

I'm going to assume that you meant to say "Yes, doesn't it?". Below is some information from medical professionals showing that sebum doesn't moisturize skin:

Journal of Investigative Dermatology. 1987 Mar; 88(3 Suppl): 2s-6s.

"Skin lipids: an update"

Downing DT, Stewart ME, Wertz PW, Colton SW, Abraham W, Strauss JS.

(excerpt from this study follows below, including the references...)

Sebum and Dry Skin "...skin can be healthy and have charming cosmetic properties in the virtual absence of sebum." (14)

Kligman drew attention to prepubertal children, who produce almost no sebum, to support his thesis that skin does not depend upon sebum for maintaining its barrier to water loss: "...there can be no doubt of the insignificance of sebum as a waterproofing material." (14) Our recent studies at the other end of the human age spectrum have supported this conviction. In a survey of sebum secretion rates and the incidence of dry skin among subjects aged 65 to 97, no correlation was found between sebaceous gland activity and the presence or severity of dry skin (34). Kligman recognized that sebum could mask the scaliness of dry skin without producing any actual change in the condition: "Sebum, like any oil, has some emollient or smoothing effect when a sufficient quantity is rubbed into dry, scaling skin." (14) In spite of the clear inference to be drawn from the cutaneous characteristics of children and the experimental data obtained from the elderly, it remains difficult to dispel the myth that low sebum secretion rates cause dry skin. It is a rare individual who realizes that "dry" is not the obverse of "oily".

(14) Kligman AM: The uses of sebum. Br J Dermatol 75: 307-319, 1963

(34) Frantz RA, Kinney CK, Downing DT: A study of skin dryness in the elderly. Nursing Res 35: 98-100, 1986.

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I'm on the thin side too (6' tall, 155 lbs). One of my best friends is thinner than me and has very oily skin, so I really think there's something to this!

hey sonal and dingleshugen, would you like to make a pact to gain weight? We can make a new thread for people who fit our profile and motivate eachother to eat more. :cool:

If we gain a good amount of weight and find our skin getting less oily, we'll definately have some evidence for others.

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You think sebum moisturizes skin? :)

Yes, isn't it?

I'm going to assume that you meant to say "Yes, doesn't it?". Below is some information from medical professionals showing that sebum doesn't moisturize skin:

Journal of Investigative Dermatology. 1987 Mar; 88(3 Suppl): 2s-6s.

"Skin lipids: an update"

Downing DT, Stewart ME, Wertz PW, Colton SW, Abraham W, Strauss JS.

(excerpt from this study follows below, including the references...)

Sebum and Dry Skin "...skin can be healthy and have charming cosmetic properties in the virtual absence of sebum." (14)

Kligman drew attention to prepubertal children, who produce almost no sebum, to support his thesis that skin does not depend upon sebum for maintaining its barrier to water loss: "...there can be no doubt of the insignificance of sebum as a waterproofing material." (14) Our recent studies at the other end of the human age spectrum have supported this conviction. In a survey of sebum secretion rates and the incidence of dry skin among subjects aged 65 to 97, no correlation was found between sebaceous gland activity and the presence or severity of dry skin (34). Kligman recognized that sebum could mask the scaliness of dry skin without producing any actual change in the condition: "Sebum, like any oil, has some emollient or smoothing effect when a sufficient quantity is rubbed into dry, scaling skin." (14) In spite of the clear inference to be drawn from the cutaneous characteristics of children and the experimental data obtained from the elderly, it remains difficult to dispel the myth that low sebum secretion rates cause dry skin. It is a rare individual who realizes that "dry" is not the obverse of "oily".

(14) Kligman AM: The uses of sebum. Br J Dermatol 75: 307-319, 1963

(34) Frantz RA, Kinney CK, Downing DT: A study of skin dryness in the elderly. Nursing Res 35: 98-100, 1986.

Ok so then what exactly is the function of sebum? Biologically it should have some significance otherwise why would we produce it? Maybe its the body way of removing excess fat and toxins? Instead of accumulating fat in the body and clogging arteries etc. maybe it removes it through sebum?

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I'm on the thin side too (6' tall, 155 lbs). One of my best friends is thinner than me and has very oily skin, so I really think there's something to this!

hey sonal and dingleshugen, would you like to make a pact to gain weight? We can make a new thread for people who fit our profile and motivate eachother to eat more. :cool:

If we gain a good amount of weight and find our skin getting less oily, we'll definately have some evidence for others.

haha yuzer I have no desire to gain weight...) I once had a roomie who was chubby although she ate only about half of what I ate. She kinda envied me for my body and I envied her for her skin...) I didn't realize I may not be putting on weight but all that extra fat was being converted to sebum on my skin...)

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Ok so then what exactly is the function of sebum? Biologically it should have some significance otherwise why would we produce it? Maybe its the body way of removing excess fat and toxins? Instead of accumulating fat in the body and clogging arteries etc. maybe it removes it through sebum?

I think Kligman is correct when he says that there IS no function for sebum in modern times. There used to be a purpose for it a long time ago, but not anymore. Read this excerpt from a medical journal article:

"Sebum Secretion and Sebaceous Lipids", Stewart et al, Dermatologic Clinics -- Vol. 1, No. 3, July 1983.

"Sebum is an oily substance that is secreted onto the skin surface from glands located in the dermis. Although a number of useful functions have been proposed for sebum, proof that sebum performs any of them is lacking. In furred mammals an essential function of sebum is to supply 7-dehydrocholesterol, which is converted to vitamin D by the action of sunlight and then ingested by the animal as it grooms itself. In man, however, the location of 7-dehydrocholesterol has been shown to be the epidermis rather than sebum. Sebum may act as a waterproofing agent for fur, but humans obviously have little need for this function. Kligman has specifically disproved the notions that sebum improves the barrier function of skin, that sebum helps to regulate the water content of the horny layer by forming emulsions with sweat, or that sebum on the skin surface is fungistatic or antibacterial.(21) Kligman regards the human sebaceous glands as 'living fossils' that lost their usefulness to our species as we lost our fur.(21)

(21) Kligman, A. M.: The uses of sebum? In Montagna, W., Ellis, R. A., and Silver, A. F. (eds.): Advances in the Biology of Skin. Volume 4. Oxford, Pergamon Press, 1963."

.

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lol sorry sonal i didn't realize you were a female! i can understand why you'd wanna stay thin.

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I did track and field/ XC in high school so I think that may be one of the reasons Im so thin, but even now I don't gain weight no matter how much I eat.

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This has been concurent to my theory as to why thin people generally have oily skin. Metabolism may be one thing doing it but the removal of fats through the skin is probably another.

Im 6'1 and like 135 and when I was trying to bulk up my skin got alot oilier and i broke out alot which I am just now recovering from... so skinny guys out there I wouldn't eat a high calorie high fat diet to try and get bigger it didnt work for me, only caused me pain, accept your skinnyness and only eat what u need to alot of girls like or don't mind skinny guys especially if you're tone =]

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