We're not sure what kind of shielding we need! UV radiation can have damage DNA through a process called [https://en.wikipedia.org/wiki/Direct_DNA_damage Direct DNA damage] that can lead to thymine or pyrimidine dimers. This is what causes sunburn, and it's why your skin can tan to help block out UVB. | We're not sure what kind of shielding we need! UV radiation can have damage DNA through a process called [https://en.wikipedia.org/wiki/Direct_DNA_damage Direct DNA damage] that can lead to thymine or pyrimidine dimers. This is what causes sunburn, and it's why your skin can tan to help block out UVB. |