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.
Skin cancer is a disease in which cancerous cells develop in your skinâs tissues. Skin cancer is the most common type of cancer in America today. It affects 5 million Americans each year. Basal cell cancer and squamous cell cancer are the two most common types of skin cancer. Melanoma is more rare, but itâs also much more dangerous. These cancers typically develop on areas most exposed to direct sunlight, including: head.