The rainy season is finally over!
I don't know if the scorching sun has been in the sky for the past few days
I don't know if everyone is used to it
It's time to put the dust on you
Sun-protective clothing, parasols, and sunscreen are all out
But I want to remind everyone who loves beauty
Be careful
28-year-old woman with excessive sun protection
As a result, he developed hypochondriasis
"Sun protection is important, but it's also in moderation, and it's just as important to be beautiful and healthy as it gets." Deng Lin, from the Department of Dermatology and Venereology at Hangzhou First People's Hospital, said that the clinic occasionally encounters some cases of "excessive sun protection", most of which are caused by osteoporosis caused by long-term sun exposure.
The most serious thing in her memory is that of a 28-year-old woman who, in order to pursue white skin, must have a parasol whenever she goes out, regardless of the weather and season, and apply sunscreen five or six times a day, never stopping. Such strict sun protection measures, coupled with an irregular daily diet, led to a severe vitamin D deficiency and hypochondriasis, which progressed to the point that she could not even chew food.
"Cases of excessive sun protection are not common, and many patients often have some dietary deficiencies in addition to not being exposed to the sun for a long time, and all kinds of factors are superimposed to lead to serious conditions."
However, there is no need to be overly anxious, Deng Lin pointed out that vitamin D deficiency is not caused by not being exposed to the sun overnight, it is often the result of a long period of lack of sun exposure (at least 7 days or more). In order to effectively promote vitamin D synthesis, it is not necessary to be exposed to strong sunlight, just about 15 to 20 minutes of sunbathing a day when the sun is mild. If you are too busy to allocate your time, more than an hour of sunlight exposure at a time can also be effective, if conditions allow.
In addition, it is important to note that if you want to supplement vitamin D through sun exposure, you should avoid doing it indoors through glass, which shields out the key UVB rays, on which vitamin D synthesis depends. Therefore, for an effective acquisition of vitamin D, it is recommended to do it directly outdoors in the sun.
Nowadays, young people are mostly working indoors, the amount of outdoor exercise has decreased sharply, and the incidence of osteoporosis is obviously younger. Sun exposure is not limited to the elderly and children, but young people should also be exposed to the sun and vitamin D supplements with moderate sun protection.
Therefore, it is also good to bask in the sun properly, and you can choose the weather with the right temperature to go out and embrace the sun.
If you don't do a good job of sun protection, you will also have troubles
Many people feel that they don't need sun protection at all, and it doesn't matter if they get a tan, but overexposure to the sun may be as simple as tanning.
Ultraviolet rays have been classified as a class I carcinogen by the World Health Organization's International Agency for Research on Cancer, and a large number of studies have confirmed that ultraviolet rays have a very clear relationship with the occurrence of a variety of skin cancers. The highest incidence is basal cell carcinoma, followed by actinic keratoses, which is a precancerous condition that may progress to squamous cell carcinoma. There is also malignant melanoma, which has the highest degree of malignancy and is the most likely to metastasize to other organs.
The image is generated by AI
Ultraviolet rays can also cause hair damage, not only in the hair shaft, but also in the dermis and subcutaneous tissues, causing malfunction of hair matrix cells and melanocytes in hair follicles, which in turn can lead to hair loss. In addition, exposure to ultraviolet rays may cause abnormal function of the local skin and systemic immune system.
Among the patients that Deng Lin came into contact with, there was a 30-year-old female patient, after a face-to-face diagnosis, most of the woman's face was age spots, it turned out that this patient had no awareness and habit of sun protection since he was a child, even if he went out at noon in summer, he did not wear sunscreen, did not play an umbrella, and was often exposed to the sun because of work reasons, and his skin had symptoms such as redness and stinging before, but he did not pay attention to it. Deng Lin told the patient that during the treatment, they should also pay attention to sun protection measures, otherwise the spots may grow back and even worse.
In addition, ultraviolet rays can also promote or cause the aggravation of some diseases, such as melasma, lupus erythematosus, dermatomyositis, follicular keratoses, etc.
Full body sun protection, don't forget your eyes
Many friends used sunscreen clothing, sunscreen, and parasols, but they neglected a crucial part - the eyes!
UV rays have been reported to induce skin cancers such as basal cell carcinoma, squamous cell carcinoma and malignant melanoma of the eyelids. After passing through the first barrier of the eye, UV rays then irritate the cornea, causing inflammation, pain and tearing.
When ultraviolet rays enter the lens, it will promote the growth of free radicals, resulting in denaturation, oxidation, and polymerization of lens proteins.
The damage of ultraviolet rays to the eyes does not stop there, it can even affect the macula, which provides us with more than 90% of the visual information. The macula is located in the center of the retina, and when UV rays damage the photoreceptor cells and pigment epithelial cells in the macula area, the risk of macular degeneration is greatly increased. If you receive ultraviolet rays for a long time, the tissues of the eye will be damaged to varying degrees.
When choosing sunglasses, as long as they are purchased through regular channels, products marked with UV400 or UV100% are products that can effectively protect against ultraviolet rays! Different types of people can also choose sunglasses with different functions, which will vary from person to person.
What are the misconceptions about sun protection?
How to properly protect yourself from the sun?
Let's take a look!
Source: News Morning Post Liu Yiming Comprehensive Zhejiang Medical Online, People's Daily Online, Shangguan News, Popular Science China
Editor: Yu Zhuohan
Duty Director: Yuan Yuzi
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