Introduction
Being tan has not always been thought of as the aesthetic ideal, but in our current culture many people seek a "healthy tan," There are some benefits to modest sun exposure, but there is clear evidence that overexposure to ultraviolet radiation in sunlight can have a number of adverse health effects. This module will provide background on the history of tanning and the related health risks.
Learning Objectives
After successfully completing this module, you will be able to:
- Explain the relationship among infrared, visible, and ultraviolet radiation.
- Explain what is meant by the "UV Index" and how to obtain daily updates about the UV Index in your community.
- Identify artificial sources of UV radiation.
- Discuss the importance of vitamin D to human health and the role of skin exposure to UVB and diet in supplying our needs for vitamin D.
- Summarize the Institute of Medicine's conclusions regarding human needs for vitamin D and the current recommendations for DRI (Dietary Recommended Intake).
- Explain how ultraviolet radiation increases the risk of skin cancer.
- Explain adverse effects of ultraviolet radiation on the eyes.
- Explain the SPF scale for sun block lotions.