. Mercury is poisonous to the brain .
(I wonder astrologically, what is the condition of your mercury and/or 3rd house.. etc? )
(Just goes to show that becoming a Dr. doesn't automatically indicate intelligence and commonsense)
some may forget that doctors have a nickname of 'quacks". this is because early on they started prescribing quick(quack)silver/ mercury for syphilis . it killed the disease and also the patient.
sir Isaac newton had two major episodes of "insanity" which are now attributed to his alchemical experiments using mercury