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.
1 Skin cancer is the most common of all cancers. 2  The number of skin cancer patients is growing steadily. 3  Estimates of Americans diagnosed with skin cancer each year range from 700,000 to one million. 4  Half of all Americans will experience skin cancer at least once before the age of 65.