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    • Can humans see ultraviolet light?

      Can humans see ultraviolet light?

      Live Science via Yahoo News· 13 hours ago

      Ultraviolet wavelengths, which range from 10 to 380 nanometers, are smaller and more energetic than those on the visible light spectrum ...

    • Dermatologist explains light therapy for skin

      Dermatologist explains light therapy for skin

      Medical Xpress· 4 days ago

      Dermatologists advise their patients to avoid harmful ultraviolet light, which can cause skin damage, photo-aging and skin cancer. Light therapy is a...