Level 3 - Source on Health Effects of Artificial Light

• 1. Why is artificial light a concern?
• 2. How do artificial lights work?
• 3. How does light affect living organisms?
  • 3.1 What is light and how is it absorbed and measured?
  • 3.2 How can light affect biological systems?
• 4. What effects on health have been observed?
  • 4.1 Thermal and chemical effects.
  • 4.2 Effects on the eyes
  • 4.3 Effects on the sleep, mood and the circacian rhythm.
• 5. What are the effects on people who have conditions that make them sensitive to light?
  • 5.1 Skin diseases
  • 5.2 Eye conditions
  • 5.3 Other conditions linked to light flicker
• 6. How and where are people exposed to artificial light?
• 7. Are there potential health risks linked to artificial lights?