7 facts about the skin: true or false?
Source:The Skin is the largest human organ, and it needs special care. In society, many common myths about the skin, for example, some people believe that to maintain health you need to drink at least two liters of water a day. But it is, or not? Professor of molecular genetic dermatology Sarah brown has selected some of the most common myths about skin and explained which of them are true and some is fiction.
This Article was published in the journal the Conversation. As you can see, part of the common people of the facts were true, but some of them can surprise, because they are far from the truth.
the1. The skin is constantly updated
True. the Skin is a dynamic barrier between the interior body and the outside world. The main cells of the epidermis of human skin keratinocytes, divide continuously, and old skin cells over time are discarded and replaced by new.
the2. Two liters of water a day ensures healthy skin
False. the Amount of alcohol consumed per day of water does not affect the condition of the skin. A certain amount of water needed to maintain the good condition of the skin does not exist — it all depends on how much liquid the organism. Therefore, for healthy skin you should drink water when one feels thirsty.
the3. Stress can destroy the health of the skin
True. stress is the cause of many diseases, including skin problems. Studies have shown that a difficult life situation, can cause psoriasis, eczema and other dermatological diseases. It is believed that this is the consequences of the active production of stress hormones, particularly cortisol.
the4. The chocolate pimples
False. chocolate contains a lot of fat, which, of course, does not benefit the body. But in the occurrence of pimples chocolate to do with it — most often they arise from the immune response of the skin to clogged pores. Also causes of acne can be hormonal effects on the sebaceous gland and the abundance of microbes on the skin.
the5. Washing detergent cause eczema
False. Substances contained in washing powders can aggravate the disease, but not cause of its occurrence. They can irritate sensitive skin or cause dryness, so dermatologists recommend to always use gloves.
the6. White marks on nails talk about the lack of calcium
False. Calcium is undoubtedly important for the health of nails, but the white markings appear not due to its shortage. The fact is that the nails begin to grow in the region under the upper edge of the nail, and if this area is damaged, this place can accumulate the air. It is the cause of white markings.
the7. Sun good for the skin
truth And a lie. the Sun emits different types of waves and they have different effects on the skin. For example, under the influence of UVB rays the body produces vitamin D, essential for bone health. Using different rays, dermatologists can treat many different problems, but they need to be careful. Excessive exposure to ultraviolet rays can cause cancer, so on Sunny days it is very important to wear t-shirts, hat and other protecting clothes.
What can be sure is that the skin must be constantly cleaned of dirt. It is important not to overdo it with detergent to remove all moisture and cause dryness. If the skin is prone to acne, should not use oily creams, and use analogues of water-based.
Which of the seven facts you thought were true and which false? Your answers can be given in the review, and discuss other topics of science and technologies .
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