Why is snot Green and sticky? – Sports Science Zone

Question: Why is snot Green and sticky?
- Keywords:
  green,
  mucus,
  nose,
  secrete,
  secretion,
  snot,
  sticky
Asked by lamreislwh to Helen, Jenni, Mark, Martin, Stu on 22 Jun 2011.
- Jenni Tilley answered on 21 Jun 2011:
  
  Actually snot is clear if you’re healthy. it’s only when your fighting some sort of viral infection that your snot goes green.
  
  http://www.whyzz.com/why-is-snot-green
- Helen O'Connor answered on 22 Jun 2011:
  
  Nature’s way of making it too disgusting to eat?

Question: Why is snot Green and sticky?