Diseases that are aggravated by the sun are named When the sun can be harmful.

Solar activity during the summer heat can exacerbate a number of diseases and conditions, some of which can even be dangerous.. Why is this happening and is it possible to help this, Chronicle reports. info with link to RBC.

This was told by Alexander Zolotarev, director of the Medical Center "

The sun accelerates skin aging Ultraviolet rays are able to influence the synthesis of skin DNA, change the ratio of elastic and collagen fibers, as a result, the skin loses its elasticity, becomes covered with wrinkles, which causes the external effect of aging.

Increased risk of cancer Exposure to sunlight increases the risk of skin cancer. Activation of melanocytes (skin cells that produce melanin) can lead to the transformation of nevi (moles) into melanoma.

Solar dermatitis is becoming a frequent occurrence According to the doctor, the incidence of solar dermatitis is increasing every year.

“Due to the development of photosensitivity (increased sensitivity of the skin to the sun's rays), a rash in the form of urticaria occurs in areas of the body exposed to the sun's rays.. This is an allergic reaction and it is known that its development depends not only on the properties of the sun, but also on the state of the human body.. People who have problems with digestion, diseases of the endocrine organs, nervous system, autoimmune diseases are more prone to the development of photodermatitis, "

" It is in the summer that the number of heart attacks and strokes increases significantly.

“Heart rhythm disturbances, varicose veins of the lower extremities, negative water balance due to increased fluid loss and low fluid intake, kidney disease - all these are factors that increase the risk of thrombosis and cardiovascular complications - stroke or heart attack..

People with chronic diseases of the respiratory system can suffer from the negative effects of heat: patients with bronchial asthma, chronic obstructive pulmonary disease, emphysema.

The acceleration of breathing with dry air leads to drying out of the mucous membrane, its irritation, a sharp narrowing of the diameter of the bronchi, the development of suffocation and a deterioration in the supply of oxygen to organs and tissues.

Life-threatening conditions can occur In addition to local exposure to the skin, the sun's rays can cause sunstroke and heatstroke. Sunstroke is a pathological condition caused by heat exposure to the head of a person, and heatstroke is general overheating.. Both conditions are life-threatening..

The doctor adds that the symptoms of heatstroke can be different and depend on the dose of sun exposure, age, gender, the presence of chronic diseases and other factors..

Heatstroke symptoms include:.

headache, nausea, tinnitus, dizziness, reddening of the skin, which in severe cases can become pale, tachycardia develops, rapid pulse, instability of blood pressure (first increase and then decrease below normal), body temperature rises, vomiting may occur,.

“If complications from“ sunbathing ”develop, you need to urgently call an ambulance, move the victim into the shade, wipe him off with water at a temperature of 20-28 degrees, if you are conscious, give him water to drink.. It is obligatory to ask the patient if he is taking any medications and if he has any specific conditions (pregnancy, menopause, hormone replacement therapy, etc.). This can be important if a person loses consciousness before the ambulance arrives, and this data that medical workers will receive may be extremely necessary for the provision of proper medical care, ”says the doctor..

Alexander Zolotarev added that it is recommended to prevent the development of heat injury:.

observe the drinking regimen, do not be in direct sunlight from 11 am to 5 pm, wear clothes made of natural fabrics, apply sunscreens to the skin, cover your head with a panama or kerchief, do not consume alcoholic beverages and drinks with a stimulating effect on the nervous system.

“It is known that overweight people are much less protected from the negative effects of the sun.. Therefore, they, like the elderly, children, pregnant women and people with chronic diseases of the cardiovascular, nervous, respiratory, endocrine systems, need to be extremely careful when planning a date with the sun, ”the doctor summed up.

Despite this sun we need By heating the skin, infrared radiation triggers thermoregulatory mechanisms that lead to improved blood circulation in the skin, increased sweating, changes in urinary flow rate, respiratory rate, blood pressure, pulse and other regulatory changes.

Ultraviolet radiation of the A-spectrum (long ultraviolet waves with a length of 400-315 nm) provides the transition of vitamin D2 to the biologically active form of D3. Thanks to vitamin D3, a constant level of calcium in the blood is maintained, with a lack of which an adult develops osteoporosis, and a child develops rickets. In addition, vitamin D provides a sufficient level of activity of the immune system, maintains the balance of the hormonal system, has a positive effect on cholesterol metabolism, and has anti-cancer properties..

B-spectrum ultraviolet rays (medium ultraviolet waves.

with a length of 315-280 nm) provide the synthesis of melanin - a skin pigment that creates a tanning effect.

Melanin itself reduces UV exposure, as it has properties to delay radiation.

Ultraviolet radiation of the C-spectrum (short ultraviolet waves with a length of 280-100 nm) has a bactericidal effect, disinfecting the skin from bacteria, viruses, fungal flora and other pathogenic microorganisms.

It is the emitters of this spectrum that are used for disinfecting surfaces and air in medical and educational institutions..

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