How can you explain love in a scientific way?

Question: How can you explain love in a scientific way?
- Keywords:
  explain,
  love,
  scientific
Asked by Anna to Huma, Jack, Lucy, Miranda, Peter on 14 Nov 2016.
- Peter Boorman answered on 14 Nov 2016:
  
  Hi Anna,
  
  Very interesting (and also tricky!) question. I guess when we the feeling of love is caused by chemical processes in the brain. In this sense, love could be described based on how the brain works, which mainly uses biology and chemistry, not to mention some physics for the electric signals the brain has to process!
  
  Peter

Question: How can you explain love in a scientific way?