Sweden has given us many things.  We all know Volvo, IKEA, even Spotify.  But few have heard of Dr. Arvid Carlsson, who died in Gothenburg last month at age 95.

but for our purposes he connects the present to the 1960s

people with Parkinson’s

Arvid Carlsson confirmed dopamine as a neurotransmitter and modulator the following year. Carlsson developed a method to actually measure dopamine levels in brain tissues, particularly in those parts of the brain important for movement. He showed that a decrease in dopamine levels brought on symptoms in animals similar to those seen in Parkinson’s patients and this opened the door to possibly managing the disease if these levels could be increased or supplemented.