Written Laser Hair Removal Practice Exam

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Which rays have been linked to both skin cancer and photoaging?

  1. UVA rays only

  2. UVB rays only

  3. Both UVA and UVB rays

  4. Neither UVA nor UVB rays

The correct answer is: Both UVA and UVB rays

Both UVA and UVB rays are associated with skin cancer and photoaging, making the selection of both types correct for this question. UVA rays penetrate the skin more deeply and are primarily associated with long-term skin damage such as wrinkles, loss of skin elasticity, and photoaging. They contribute significantly to the development of skin cancers by inducing DNA damage in skin cells over time. UVB rays, while not penetrating as deeply as UVA rays, primarily affect the surface layers of the skin and are known to be a significant cause of sunburn and are crucial in the development of skin cancers as they can directly damage the DNA in skin cells. The combination of both UVA and UVB rays thus plays a critical role in both the risk of developing skin cancer and the aging of the skin.

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