Radiation damage is based on the wavelength (and hence the energy of the wave) of the electromagnetic radiation. The interactions of radiation and matter depend completely on the wavelength, and not all wavelengths cause damage to DNA. For example, UVB light causes DNA dimerization leading to skin cancer; UVB is higher energy than visible light but less than X-Rays. Note that UVA does not cause the same type of damage to DNA directly, but rather indirectly.
Take home message: not all electromagnetic radiation causes DNA damage.
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Posted to Affirm C02 Ablative Skin Retexturizing Resurfacing Treatment Results & Review on 3 Dec 2010
Take home message: not all electromagnetic radiation causes DNA damage.