How quick does the brain send messages?

Question: How quick does the brain send messages?
- Keywords:
  brain,
  messages,
  nerves
Asked by to Chris on 17 Mar 2014. This question was also asked by .
- Chris Cole answered on 17 Mar 2014:
  
  I’m sure someone’s measured the true speed, but I’m going to go with “very fast”! Just think how quickly you react if cut or burned; your hand has moved before you even realise what’s going on.

Question: How quick does the brain send messages?