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.
The study, published in the journal Cancer Epidemiology, Biomarkers & Prevention, showed that people who experienced five or more blistering sunburns between ages 15 and 20 had a 68 percent increased risk of two kinds of skin cancer, basal cell carcinoma and squamous cell carcinoma, as well as an 80 percent higher melanoma risk.