No matter how strong the ultraviolet rays are, it is impossible to penetrate a wall.
The best sunscreen is not to be exposed to the sun. Do the following two things, you can avoid 60% or more UV damage:
❶Avoid activities in the sun between 10 am and 4 pm
❷When going out for activities, choose a cool place to walk and stay.Every day from 12 o’clock to 2 o’clock noon is the strongest period of the day. After 4 o’clock in the afternoon, the intensity of ultraviolet light is significantly reduced, which is only equivalent to 25% or less of the strongest time.When you go out, if you can have a big tree to shade you, the UV intensity can be reduced by 50% or even 90% immediately.
Have you learned?
