The skin is the largest human organ, andhe needs special care. In society, many myths about the skin of a person are common, for example, some people believe that in order to maintain his health it is necessary to drink at least two liters of water a day. But is it, or not? Sarah Brown, a professor of molecular genetic dermatology, selected some of the most common skin myths and explained which one is true and which is fiction.
The article was published in The Conversation magazine. As you can see, some of the facts prevalent among the people turned out to be true, but some of them may surprise because they are far from the truth.
1. The skin is constantly updated.
True. The skin is a dynamic barrier between the innerpart of the body and the outside world. The main cells of the human skin epidermis, keratinocytes, are constantly dividing, and the old skin cells are eventually shed and replaced by new ones.
2. Two liters of water per day provide healthy skin.
Lying. The amount of water consumed per day does not affectskin condition. A certain amount of water needed to maintain good skin condition does not exist - it all depends on how much fluid the body loses. Therefore, it is necessary to drink water for healthy skin whenever thirst is felt.
3. Stress can destroy skin health.
True. Stress is the cause of many illnesses, includingincluding skin problems. Studies have shown that difficult life situations can cause psoriasis, eczema and other dermatological diseases. It is believed that this is a consequence of the active production of stress hormones, in particular, cortisol.
4. Chocolate acne
Lying. Chocolate contains a lot of fat, thatOf course, it does not benefit the body. But chocolate has nothing to do with the onset of acne - most often they are due to the skin’s immune response to blocked pores. Also, the causes of acne can be hormonal effects on the sebaceous glands and the abundance of germs on the skin.
5. Washing powder causes eczema.
Lying. Substances that are contained in washingpowders, can aggravate the disease, but not cause it to occur. They can irritate sensitive skin or cause dryness, so dermatologists always recommend using gloves.
6. White markings on the nails indicate calcium deficiency.
Lying. Calcium is undoubtedly important for the health of nails,but white markings do not appear due to its lack. The fact is that the nails begin to grow in the area under the upper edge of the nail, and if this area is damaged, air can accumulate in this place. That he is the cause of white markings.
7. The sun is good for the skin.
And true and false. The sun radiates different types of waves, and theyaffect skin differently. For example, under the influence of UVB rays, the body produces vitamin D, which is necessary for healthy bones. Using different rays, dermatologists can treat different diseases, but you need to be careful with them. Excessive exposure to ultraviolet rays can even cause cancer, so on sunny days it is extremely important to wear T-shirts, hats and other protective clothing.
What you can be completely sure of isthat the skin must be constantly cleaned of dirt. It is important not to be zealous with detergents, so as not to remove all moisture and provoke dryness. If the skin is prone to acne, you should not use fatty creams, but use water-based counterparts.
Which of the seven facts you thought were true, and which were false? Your answers can be given in the comments, and other topics of science and technology can always be discussed in our Telegram-chat.