How does the brain work?

Question: How does the brain work?
- Keywords:
  brain,
  human,
  neuroscience
Asked by wl to Claire, Liad, Ruth, Ryan, Mako on 20 Jun 2015. This question was also asked by jk, pm.
- Liad Baruchin answered on 20 Jun 2015:
  
  The brain contains cells called neurons that work by passing an electric current from one to the other. The brain works by different groups of neurons being activated in response to different stimuli in the environment.

Question: How does the brain work?