Have you ever heard that it's better to bake on cloudy days?
Of course, you can burn more on a sunny day, but why is it said that you can burn more on a cloudy day?
In this article, we will explain the following three in detail.
- The secret of ultraviolet rays
- The reason why it is said that it is easier to bake when it is cloudy
- Sunburn measures you should take
If you read to the end, you will become a fashionable woman who takes precautions against sunburn.
Click here for a list of our UV arm covers
Even if it's cloudy, there is UV rays
Even on cloudy days there is UV rays.
The amount of UV rays depending on the weather is 80-90% sunny, 70-80% cloudy, 50% cloudy, and 30% rainy, assuming clear skies are 100%.
The amount of ultraviolet rays decreases compared to clear and sunny days, but it does not disappear.
What exactly is ultraviolet light?
Solar radiation from the sun is divided into infrared, visible, and ultraviolet rays depending on wavelength, with ultraviolet rays having the shortest wavelength.
Generally, the wavelength of ultraviolet rays is about 100 to 400 nm.
In addition, ultraviolet rays (UV) are divided into UV-A, UV-B, and UV-C in descending order of wavelength.
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Types of ultraviolet rays |
Features/Details |
|
UV-A |
Ultraviolet rays reach the ground without being absorbed much by the atmosphere. |
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Causes of aging such as wrinkles and sagging |
|
|
UV-B |
Most of it is absorbed by stratospheric ozone, but about 10% reaches the ground. |
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Cause of "stain" |
|
|
Causes of skin cancer, cataracts, weakened immune system, etc. |
|
|
On the other hand, it plays an important role in the production of vitamin D |
|
|
UV-C |
Stratospheric ozone does not reach the ground, so there is no impact on daily life. |
|
Due to the risk of damaging the DNA of living things, artificially using sterilizing and sterilizing effects such as making ultraviolet sterilizing lamps |
The amount of UV rays fluctuates throughout the year, so be sure to take precautions against UV rays.
Effects of ultraviolet rays on the body
UV-A and UV-B affect the body.
UV-A rays reach not only the surface of the skin but also the dermis underneath, destroying cells such as collagen fibers and causing age spots and sagging skin.
On the other hand, most of the UV-B is absorbed on the surface of the skin, and it is this UV-B that causes the redness and stinging after sunburn.
When your skin is exposed to ultraviolet rays, you try to protect your skin by getting a sunburn, but if you are exposed to too much ultraviolet rays, you are more likely to develop skin problems and even develop a risk of skin cancer.
Exposure to UV rays not only from your skin but also from your hair and eyes can lead to aging and disease.
Why UV Rays Cause Sunburn on Cloudy Days
There are two reasons why it is said that you get hotter on a cloudy day.
- Diffusion of light
- Compared to sunny days, people tend to neglect sun protection
I will explain the above two in detail.
Diffusion of light
UV-A is an ultraviolet ray that can pass through obstacles such as clouds and window glass, so even if the sun is covered with clouds, UV-A still shines down on us.
The first reason is that since clouds are made of water droplets, UV rays are reflected and refracted and diffused into scattered light, which causes them to be affected by UV rays from various angles.
Compared to sunny days, people tend to neglect sun protection
The second reason is that even if you know that you can get a sunburn even on cloudy days, if the sun isn't out, you may feel the sunlight is weak, so you tend to neglect UV protection.
Ultraviolet rays cannot be detected with the eyes or senses.
This is true not only on cloudy days, but also on rainy days and indoors.
You might think, ``I don't need sunscreen because it's cloudy,'' but in reality, UV protection is necessary even if it's cloudy.
Remember that we are exposed to UV rays without even realizing it.
Must-have sun protection
In order to prevent skin aging, diseases, and problems, it is necessary to take proper sun protection on a daily basis.
The following three methods are recommended for sun protection.
- apply sunscreen
- put on sunglasses
- Utilize arm cover
I will explain the above three in detail.
apply sunscreen
Applying sunscreen protects your skin from UV rays and is a powerful ally in preventing sunburn and age spots.
The SPF/PA listed on sunscreens is an indicator of the sunscreen's effectiveness, with SPF representing UV-B and PA representing UV-A effectiveness.
For more effective protection, it is most effective to reapply 15 minutes before going out and every 2 hours.
To avoid getting sunburned on cloudy days, be sure to wear sunscreen before going out.
Sunglasses are a must when going out
It is said that when ultraviolet rays enter the eyes, the brain mistakenly thinks that it has been exposed to ultraviolet rays, increasing the possibility of producing melanin, which is the cause of age spots.
To protect your eyes from UV rays, we recommend wearing sunglasses that have a UV cut rate of 0% or a UV transmittance of 0% or less.
Don't let your guard down even at home! Utilize arm cover
A UV-treated arm cover is recommended when going out for a short time or driving a car.
Also, UV rays can pass through the window glass even when you're inside the house, so I was getting burnt even though I wasn't going out! This can be prevented in advance.
The UV-cut material has been treated to block UV rays, so it's a recommended item that you can easily use even if you don't like sunscreen.
Recently, there have been an increase in the number of stylish and cute arm covers, so they can also become a point of coordination.
Arm covers with pearls or embroidery are especially recommended for those who are fashionable.
summary
In this article, we have explained the following three in detail:
- The secret of ultraviolet rays
- The reason why it is said that it is easier to bake when it is cloudy
- Sunburn measures you should take
Take proper sun protection on a daily basis and aim for a healthy and beautiful woman.
