current
The yellow warning signal for high temperature in Shenzhen is still in force
In recent days
Everybody is not
Go out for 5 minutes and sweat for 2 hours
The weather was clear and the sun was shining
On the people of Shenzhen
The skills you most want to master in the near future
Probably - "sunscreen tips"
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From today
Wear red when you go out
It's summer, and you can see it on the streets everywhere, and everyone is starting to pay attention to sun protection. Sun-protective clothing, sun-protective hats, sun umbrellas, sleeve guards...... Many people have chosen light colors.
Many people may think that wearing light-colored clothing is the best way to protect from the sun, but in fact, this is not the case.
Zhang Yang, Deputy Chief Physician of Nanjing Institute for Occupational Disease Prevention and Treatment (Nanjing Institute of Dermatology):
Under the same fabric, the darker the color, the better the sun protection. Red is better than black, and black is better than orange.
The doctor explained that dark-colored clothes can absorb a lot of ultraviolet rays in the sun, which is suitable for long-term outdoor activities, and although light-colored clothes are subject to relatively little heat radiation and will indeed be cooler, it does not have much effect on ultraviolet rays and is not suitable for long-term exposure to the sun.
The choice of sunscreen fabrics is also particular. Generally speaking, heavy, tightly woven fabrics such as denim and corduroy provide the best sun protection, but this fabric is certainly not suitable for wearing in the summer.
In addition, at present, the main material of sunscreen clothing is chemical fiber composition, and polyester is the main component of chemical fiber composition, and the sunscreen effect of polyester is slightly better than that of nylon.
For summer wear
And these reminders
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The less you wear, the better you can protect yourself from the heat?
Many people think that it will be cooler to wear sleeveless and camisole shirts in summer, and many men like to go shirtless because they think it will be cooler.
In fact, the less you wear in summer, the better you can prevent heatstroke.
Only when the skin temperature is higher than the ambient temperature can the skin conduct heat dissipation, and when the temperature is close to or exceeds the person's body temperature, it will absorb heat from the environment, which is more likely to lead to heat stroke.
Is it cooler to wear thin fabrics?
Many people think that seemingly light and cool materials such as chiffon sweaters and quick-drying clothes that make the human body feel cool and comfortable are cooler. In fact, in contrast, natural fibers such as cotton, linen, and silk are the first choice for hot weather.
▲Cotton clothing absorbs sweat and has good air permeability;
▲The flax material has large pores, good air permeability and water absorption;
▲Silk is skin-friendly, lighter and thinner, and it is cool to wear all over.
Hard and soft
The scalp should also pay attention to sun protection
Many people wear long sleeves when protecting themselves from the sun, and even cover their faces with veils and masks, but they ignore their heads, exposing the entire scalp to the sun. Doctors remind that the scalp is delicate and should also pay attention to sun protection.
Zhang Yang emphasized that soft sunscreen is mainly a spray for scalp sunscreen, but the disadvantage is that you have to wash your hair every time you use it. Hard sun protection is wearing a hat and umbrella, as well as wearing a hooded sunscreen clothing.
summer
What color do you wear the most?
Comment on it
Source | Popular Science China (public account) Jiangsu News Broadcasting
| ZHANG Shan
Audit | Li Shizhao
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