Nurmi used testosterone?
not exactly a PED offence when Nurmi advertised the elixer Rejuven, in public, encouraged others, where steroids were not banned, or even a thing.
Rejuven, the exact formulation I can't uncover, which is at the crux of an analysis,
is said to contain some testes extract, which would not have contained much testosterone.
might be a nice natural supplement.
with testosterone first synthesized in the mid 1930s, that would not be available to Nurmi.
other drugs like cocaine, morphine, amphetamines the war drugs, with booze and cigarettes, nicotine and cannabis whiskey extracts,
those would have been used for sure, by some, and certainly many medal holders, as well as pretty much every pro athlete, soccer, cycling, etc.