Arvidsson received his PhD in the History of religions at Lund University in 2000.
In 2007, he was appointed Associate Professor of the History of Religions at Stockholm University.
[2] Arvidsson's PhD thesis examined Indo-European studies, and was published in English under the title Aryan Idols.
[2] In his works, Arvidsson has sought to expose what he considers to be fascist political sympathies of Indo-Europeanists such as Georges Dumézil.
Arvidsson suggests that such an exposure may result in the abolishment ("Ragnarök") of the concept of Indo-European mythology.