The sun is good for the skin and for the body. It’s just that if it’s too much, we get sunburn and maybe skin cancer. I guess the best time to be under the sun is during sunrise up to about 10 and maybe 4 up to sunset. The morning sun is better they say. I guess that’s why we always open the blinds or curtains in the morning to get us up from bed. Aside from having the light in our eyes preventing us from further sleep. The window blinds help us shield too much sunlight especially in the afternoon. It also improves the decoration in the house. The windows would not look so plane with wood blinds.