Wang Zhiguo, a 65-year-old retired teacher, basks in the sun in the community park as usual.
This is the way he has insisted on recuperation for more than ten years. "Exposure to solar energy to supplement calcium and prevent osteoporosis is very good for my old bones. Teacher Wang said.
Recently, however, Mr. Wang noticed that there were some problems with his skin: there were a few more spots on his face and a few small bumps on the back of his hands. At first, he didn't care about it, until the pimples were getting more and more, and some of them were itching and painful, he decided to go to the hospital.
In the Department of Dermatology of the First People's Hospital of the city, the attending doctor Li Hua carefully examined Mr. Wang's skin lesions and was finally diagnosed with actinic keratosis.
"Mr. Wang, do you usually bask in the sun?" asked Dr. Li.
"Yes, I spend more than an hour in the sun every day, and I've been doing it for years. Isn't this health!" Teacher Wang looked proud.
Dr. Li shook his head helplessly: "Excessive exposure to the sun is not only not healthy, but will cause premature skin aging and induce skin cancer and other diseases. The keratosis on your hands is caused by long-term sun exposure. "
"Ah, can basking in the sun cause cancer?" Mr. Wang was taken aback.
Dr. Li nodded and patiently explained, "The ultraviolet rays in the sunlight are the ones who caused this result. Long-term exposure to ultraviolet rays in the average person can cause DNA damage and lead to skin cancer. In addition to skin cancer, excessive sun exposure can also accelerate skin aging, causing problems such as dark spots and wrinkles. "
"Is sun exposure healthy or carcinogenic? I'm a little confused. Teacher Wang scratched his head.
"In our daily lives, we do benefit our health by spending time in the sun. "Natural sunlight is a great way to help our skin synthesize vitamin D, promote calcium absorption, and prevent osteoporosis." But the crux of the matter is the word 'moderation'. 10-15 minutes of sunbathing a day is sufficient, preferably before 10 a.m. or after 4 p.m., when the UV intensity is relatively weak. "
"It seems that I got the dosage of 'health' wrong. Teacher Wang suddenly realized, "Then what should I do now?"
"Don't worry, it's important to treat it promptly. Dr. Lee comforted, "I will develop a personalized treatment plan for you, including cryotherapy, photodynamic therapy, etc. At the same time, you should pay attention to sun protection, wear a hat, an umbrella and wear sunscreen when you go out. It's also important to have regular check-ups. "
Teacher Wang nodded again and again: "Thank you, doctor, I will definitely follow the doctor's advice and be a clear 'sunker'." "
Walking out of the hospital, Mr. Wang was full of emotion. He once thought that the more sun he baught, the more healthy he was, but he didn't expect to get sick. This can't help but make him reflect: many seemingly healthy behaviors, if the "dosage" is not right, will be counterproductive.
Modern medical research has shown that ultraviolet light is a recognized carcinogen.
According to the World Health Organization, there are more than 3 million new cases of skin cancer worldwide each year, and a large proportion of them are related to excessive sun exposure. The incidence of skin cancer in China is also on the rise, especially among the elderly.
Of course, we can't "talk about the changing colors". Moderate exposure to sunlight can promote endocrine, improve immunity, and improve mood. The key is to grasp the "degree": the time should not be too long, the intensity should not be too high, and sun protection measures should be taken.
Mr. Wang's story has given us a profound inspiration. On the road to health, we must learn to distinguish the true from the false, and to separate the false from the true. The so-called "health preservation" cannot be blindly followed, let alone taken to extremes. Only by following science and respecting nature can we truly achieve "health preservation".
Let us treat the sun with a scientific attitude and measure health with a rational scale.
In the balance between sunlight and sun protection, within the boundary between moderation and excess, let the tree of life be evergreen and let the flower of health always bloom. Only in this way can we enjoy "joy" in the sun and enjoy "brilliance" in life!