National Institutes of Health
- The primary NIH organization for research on Sun Exposure is the National Cancer Institute
Ultraviolet (UV) rays are an invisible form of radiation. They can pass through your skin and damage your skin cells. Sunburns are a sign of skin damage. Suntans aren't healthy, either. They appear after the sun's rays have already killed some cells and damaged others. UV rays can cause skin damage during any season or at any temperature. They can also cause eye problems, wrinkles, skin spots, and skin cancer.
To protect yourself
Check your skin regularly for changes in the size, shape, color, or feel of birthmarks, moles, and spots. Such changes are a sign of skin cancer.
Food and Drug Administration
References and abstracts from MEDLINE/PubMed (National Library of Medicine)