Sunday , August 7 2022

Myths and truths about how to maintain a healthy skin



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Myths and truths about how to maintain a healthy skin

Of what creams need to use up to the amount of liters of water to drink every day, the media is full of information – not always accurate – on what you need We do to keep fresh and young skin. And some of these recommendations continue throughout the years although they do not have a scientific basis.

In an article published in The Conversation, Sara J. Brown, a researcher at Wellcome Trust and a genetic and molecular dermatology teacher at Dundee University, Scotland, discusses some of the most common myths about skin health, and confirms what data that are reliable.

Here are the seven tales and truths highlighted by Brown.

  1. The skin is constantly refurbished

TRUE: the skin is a dynamic barrier between the body inside and the outside world.

The cells of the epidermis (outer skin layer) of the name keratinocytes constantly split to produce a supply of cells that move up, passing through this layer, and then & # 39; n disappear from its attitude.

Skin is a rich source of cellular cells with the ability to share and renew themselves.

  1. You must drink two liters of water a day to keep the skin healthy

FISHING: the amount of water you drink does not directly affect your skin. Water reaches the skin through the blood flow that runs through the dermis (the inner layer of the skin). And the water is lost through epidermis, especially in a dry environment.

Water is needed to keep the skin hydrated and, when the body is suffering from serious dehydration, the skin looks boring and less elastic.

In a healthy person, the internal organs – kidneys, heart and blood vessels – control the amount of water that reaches the skin.

No fixed amount of water is required. This simply depends on how much you use it and to lose.

  1. Stress can make your skin look unhealthy

VERY: scientific studies show that a number of skin conditions are aggravated by everyday life situations, probably due to stress hormones, including cortisol (steroid hormone produced by the adrenal glands).

An example of this is alopecia areata, an autoimmune condition where the body's immune system begins to attack the hair follicles, making them fall.

Another automatic condition is psoriasis that causes the skin to thicken, float and zoom. Others are eczema – inflammation of the skin that causes red red areas that often appear with asthma, hay fever and other allergies.

  1. Eating chocolate produces acne

YES: normal acne, which appears in adolescents and can last up to 30 or 40 years, is the result of the interaction between the effect of hormones on the sebaceous glands in the skin and the skin immune response to & They have blocked pores and the microbes that live on the skin.

Having a diet high in fat is unhealthy for many reasons, but it does not cause acne.

In fact, some oral prescriptions prescribed to treat severe acne – such as isotretinoin – are best absorbed when consumed with fatty foods, and these may include chocolate.

  1. A dust for clothing causes eczema

FESTER: eczema is a condition where the skin becomes red and dry, causing tied. It is derived from a combination of genetic factors and environmental conditions.

Soaps, detergents or powders can wash lubricants and skin to help dry because they remove oil from the skin (as well as detergents removes grease from the dishes).

Biological washing powders include enzymes – fat-breaking proteins and other to remove stains – which may relieve sensitive skin and thus exacerbate eczema.

It is important to thoroughly wash the washing clothes with these products before using it to prevent it from infringing our skin.

  1. White nail marks indicate a lack of calcium

FESTER: nails are formed in the nail matrix, an area beneath the skin on the edge of the nail. If the matrix has been damaged, irregularities occur in the increasing nails and air bubbles may be caught.

This shows itself in the form of white spaces on the nail. Calcium is important for healthy nails (as well as healthy bones and teeth), but these white marks do not indicate a shortfall.

  1. The sun is good for you

TRUE AND PHAU: the sun has positive and negative effects.

Sunlight contains a mixture of different wavelengths: some are visible to the human eye, others are shorter than the colors that we can see (this is called ultraviolet (UV) and others, such as sub-red, they are.

Different donations have different effects on the skin. The UVB rays are used by the skin to produce vitamin D, which is essential for healthy bones.

Without exposure to the sun, we can get this vitamin of food. Dermatologists use specific wavelengths of UVA and UVB in controlled doses to minimize skin inflammation.

But when the skin is exposed to UV rays for a long time, they can damage DNA cell cells and cause unobstructed growth, which can lead to cancer.

As a general rule, unless you have a disease or you have a treatment to limit the operation of the immune system, the sun is good for you in moderate amounts and you should always avoid burning croen.

Source: BBC World

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