IN Lately You can often hear talk about the increase in solar activity, negative impact this is good for your health. Is there any reason to worry?
The spectrum of solar fluxes is divided into three main groups: ultra-violet rays, visible light, and infrared rays. The latter are the most beneficial for the body. Infrared spectrum sun rays strongest in the morning and evening as the sun rises and sets. The most dangerous is ultraviolet radiation, to which people are exposed during lunch and afternoon, sunbathing under the hellish light of the heavenly body.
The fashion for tanning ()"" is not at all justified. However, people, trying to show off their tanned skin, willingly succumb to the insidious solar flow not only in summer time, but also year-round, irradiated in solariums that use ultraviolet light. Tanning does more harm to the skin than good. Firstly, ultraviolet radiation reduces skin elasticity by destroying collagen fibers, and thereby accelerates aging. Secondly, acting on skin cells (melanocytes), ultraviolet light activates them, and they produce more pigment, which, deposited in the layers of the skin, increases the risk of cancer.
Another dangerous manifestation of ultraviolet radiation is the direct damaging effect - sunburn, as a rule, first, second degree. The skin turns reddish, blisters with transparent contents form, and all this is accompanied by burning pain. If area skin, sunburned is more than 15 percent, then the victim develops a burn disease, which requires qualified medical care.
Unfortunately, all the doctors' warnings fall on deaf ears. Most people know firsthand what sunburn is.
When caring for your skin, folk recipes beauty (http://tvoi-lik.ru)”” lotions made from yogurt and sour cream are often recommended, but they can only be used for minor burns. In more serious cases, it is better to lubricate the affected areas with syntomycin emulsion. Also need to use protective creams before sunbathing and after irradiation. And most importantly, avoid direct exposure to ultraviolet radiation on the body, especially during peak sun activity from 11 a.m. to 4 p.m. Plan your work and rest so that you are not in the open sun at this time.
Another threat of hot days - sunstroke, which is manifested by damage to the central nervous system. Most often it occurs directly during exposure to the sun, but it can also appear six to eight hours after exposure. Sunstroke manifests itself as general weakness, headache, dizziness, and nausea. In severe cases, the body temperature reaches 40-41 degrees, a person may experience loss of consciousness, and convulsions may occur. Such a victim must be placed in the shade, undressed, given cold water, wrapped in a sheet soaked in cold water, and a cold compress placed on the head. If the patient's condition does not improve, an ambulance should be called.
L Asc rays are the most insidious
Is it really that dangerous? May sun? We turned to doctors with this question.
– The sun in May is dangerous for the human body for a number of reasons. Firstly, March-April is still short sunny days so people get a small amount of ultraviolet radiation. In May, warm, sunny weather sets in, and people en masse go to nature, their dachas, and their gardens. There they instantly receive the lion's dose of solar radiation, which negatively affects the body, especially human skin. Actually, the sun's rays are always unsafe in large doses, it's just that at the beginning of summer we are especially not prepared for them. At this time, almost everyone has a lack of vitamins, which even the first greens cannot compensate for. Weakened by the spring lack of vitamins, the body throws all its strength into the fight against harmful influence sun. As a result of these factors, abundant sunbathing lead to an even greater decrease in immunity, drowsiness, fatigue and a high incidence of acute respiratory infections. Why the sun is dangerous for the skin, Ruslan Stasula, the head physician of clinic No. 4 in the Podolsk district of Kyiv, told Gazeta Po-Kievski.
The worst thing for skin in the sun is the strongest UV radiation. It causes wrinkles, freckles, age spots, accelerates skin aging and reduces its immune defense against infections. And in some cases, UV radiation can lead to various neoplasms on the skin, even malignant ones.
Protecting your skin
There are many sunscreens with different protection factors or, as it is also called, SPF (it characterizes the degree of protection of the skin from UV radiation). Taking into account the type of human skin and its color, you can choose a universal sunscreen.
– For those people who do not plan to leave the city in May - early June and stay in the sun for a long time, I would recommend using creams with SPF level 10–15. Moreover, sunscreens for the face with this level of protection can be used as a base for makeup. Sunscreen should be applied 30 minutes before going outside. Those who are planning trips to the country, nature or the beach, or long exposure to the sun, should definitely use sunscreens with an SPF level of 20–35 units in the first 5–7 days of sunbathing. Children's skin must be protected especially carefully because it is the most vulnerable. Creams with a protection factor of 30–40 units are suitable for this. You should not stay in the sun for a long time from 11.00 to 16.00, advised Tatyana Sorokina, dermatologist, deputy head physician of the Beauty Institute.
How to protect yourself
Ruslan Stasula recommends that in warm or hot weather in May and early summer, do not go outside for a long time during the day, walk in the fresh air in the morning and evening, be in nature mostly in the shade, protect your eyes from ultraviolet radiation with sunglasses, on hot days Be sure to wear a hat, sleep 1–2 hours longer than usual, and in addition to the first greens, take additional vitamins. Also Special attention You need to pay attention to protecting your skin. In May, you need to start using cosmetics and creams with a high protection factor. Which sunscreen A cosmetologist or dermatologist will help determine what is most suitable.
Three people's council
Parsley mask. in spring and early summer The mask is made from fresh parsley leaves and stems. Apply about two tablespoons of parsley minced through a meat grinder to cleansed facial skin, except lower eyelids, for 20–30 minutes. Then rinse with cold water and apply to damp skin nutritious cream.
Berry masks. Strawberries, wild strawberries and black currants have whitening properties. Until the first ground berries appear, you can use freshly thawed ones for the mask. The berries need to be crushed and the resulting mass applied to the face. After 20–30 minutes. wash off warm water.
Flour mask. Take two teaspoons of wheat flour, mix with one teaspoon of vinegar and one teaspoon of honey. Apply the mask to your face for 15–30 minutes, then wash off with warm water.
People are divided into 2 categories: sun lovers and sun lovers. For example, one of my friends loves the sun so much that she sunbathes even in winter in a solarium; she claims that the sun for her is a source of strength, energy and inspiration. Another friend of mine has huge stocks cosmetics, With different levels protection from the sun, and she begins to use them as soon as the sun appears in the sky. Let me tell you right away, in fact, none of them work correctly.
You will ask why? Because you can’t protect yourself from the sun all the time or, on the contrary, overuse it too much sunbathing. You need to find the golden mean, and in order to find it, you just need to sort everything out and understand all the harmful and beneficial sides of the sun, so you yourself will easily understand Which sun is harmful and which is beneficial?, now we will do this.
Harmful sun
Probably the most unpleasant “surprise” that the sun can present is a skin burn. People with fair skin They get burned almost instantly, while even a small excess of sunlight irreversibly dries out the skin. In this case, ultraviolet rays can cause sunstroke, with different ways manifestations ranging from lightheadedness and dizziness to loss of consciousness.
Some people experience sensitivity to sunlight, which manifests itself in the form of allergic-type rashes. This sensitivity can also be triggered by certain ointments and medications.
Also, the sun can cause burns to the retina and many other troubles; to avoid them, always carry good ones with you. This may seem strange to you, but redundant solar radiation does not strengthen, but rather weakens immune system, therefore, if residents of middle or northern latitudes, having gone south, immediately start working for hours, their herpes often worsens or a cold appears from nowhere, even pneumonia.
Beneficial sun
The sun is a source of endorphin - the hormone of joy
Well, is it scary? Don’t worry, in addition to all the above harmful properties, the sun also has a huge number of beneficial ones. Now I’ll tell you more about them. The sun strengthens bones, from the sun we get the most vitamin D, the deficiency of which leads to disruption of calcium metabolism and absorption of calcium, calcium will simply be washed out of the bones, and cottage cheese will no longer help here, so the bones become fragile and can break out of the blue.
Foods contain very little vitamin D, so you can’t do without sunlight. People with a lack of this vitamin are at risk of dying ahead of schedule, hypertension and a tendency toward excess weight occur more often.
Back in the last century, doctors recommended that people with asthma go south to the sea, because there is more sun and the hormone of joy - endorphin - is produced. It has long been a known fact that if you are in the sun in the morning, then you can lose weight without much effort.
How to communicate with the sun correctly
From all of the above, we can conclude that no matter how useful or harmful you consider, it will never harm correct communication with him. How to communicate with him correctly?
It is most beneficial to communicate with the sun and bathe in its rays in the morning and evening, or rather from 6 to 11 am and from 4 pm to sunset. But in general, to replenish the lack of vitamin D, 1 hour a day in the fresh air is enough, that is, walking home from school or work, plus a short Sunday walk, and your vitamin D level is normal.
Although many particularly stylish girls think that lying on the sand and sunbathing for hours is beneficial, in fact, this is not the case, I hope that after reading my article you realized this. Without the sun, life on earth would not be possible; its benefits to our health are simply priceless, as is the harm it can cause to an unprepared or careless person!
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Among the many stars in the sky, the sun is one of the most important for the life of all mankind. On its surface the temperature reaches as much as 60,000C, and the emitted energy is 6.5 kW/cm2. This star is not a solid body; scientists call it a gas ball of compressed hydrogen.
However, if the sun were shining brighter or weaker, then existing form there would be no biological species. The earth gets a very small share solar energy, although it is enough to heat land and reservoirs, energy recharge of winds and waterfalls. It should be noted that direct sunlight is dangerous for our green planet, so the atmosphere serves as special protection from it. However, a person can suffer from three types of ultraviolet radiation if he does not observe the principle of moderation. In some cases, an overabundance may damage the retina of the eye and worsen the oncological disease. But thanks to the sun, vitamin D is synthesized in the body, which prevents the occurrence of rickets in children. Many doctors recommend being in the fresh air on a beautiful sunny day to improve immunity, of course, without abusing this bright gift of nature.
To determine at what time the sun is most active, scientists annually determine the dynamics of its radiation and build a special curve. This way you can clearly see the maximum and minimum activity values of this celestial body. Moreover, the curve is calculated regardless of the month; the points at which it is plotted are influenced by days and weeks. Judging by the indicators described above, the sun is most often most active in June and August. And in places where ozone holes have been recorded and mountain peaks are located, activity reaches peaks.
Enhances solar action on any surface plain water, because its drops are small lenses. If we consider bodies of water, we can note radiation to a depth of one meter.
Not only in summer, but also in spring, every person needs to know what time of day the sun is most active. Because even in April-May there is a dangerous radioactive effect of the sun's rays. Therefore, from 12 to 16 o'clock it is better not to walk outside and stay indoors or dress in light long clothes, move to the shade.
From the point of view of astronomers, solar activity is explained by the presence of a magnetic field and the appearance of specific spots of the biopolar group.