Of the colors in the visible spectrum, red has the lowest frequency and the longest wavelength. As you move on up the spectrum, wavelengths get shorter. Red has the longes â¦ t spectrum of all visible light. But infrared is even longer and there are many more colors but you can't see them.
1 The average age of patients diagnosed with skin cancer is dropping, from 50 to 40 years old. 2  Approximately 75 percent of damage to your skin from the sun happens by the time you are 20 years old. 3  More than 90 percent of all skin cancer cases are due to overexposure to sunlight.
Nonmelanoma. Nonmelanoma skin cancer is the most common form of skin cancer. There are about 1.3 million cases each year in the United States. Basal cell carcinoma (80%) and squamous cell carcinoma (16%) are the most common forms of nonmelanoma skin cancers, accounting for about 96% of all new cases of skin cancer.