What Does Anesthesia Do To Your Brain?

Scientists know that anesthesia drugs are really good at knocking you out. What they don’t know is how.
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Sources:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1362956/
http://www.mayoclinic.org/tests-procedures/anesthesia/basics/definition/prc-20014786
http://io9.com/how-does-anesthesia-work-doctors-arent-sure-and-her-1592809615
https://www.newscientist.com/article/mg21228402.300-banishing-consciousness-the-mystery-of-anaesthesia/#.U6Ho-o1dVAE
http://www.scientificamerican.com/article/how-does-anesthesia-work/
http://www.scientificamerican.com/article/propofol-michael-jackson-doctor/
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3162622/
http://www.nigms.nih.gov/education/pages/factsheet_anesthesia.aspx
http://neurowiki2013.wikidot.com/individual:neurotransmitter-system-and-neural-circuits-gover
http://pubs.acs.org/doi/abs/10.1021/jm010461a
http://jpet.aspetjournals.org/content/297/1/338.long
Special thanks to Joseph Praver!