There were studies showing/suggesting dopamine's relation to neurogenesis. Linked study mentions SEPP1 which can be found in dopaminergic axons so I maybe read

There were studies showing/suggesting dopamine's relation to neurogenesis. Linked study mentions SEPP1 which can be found in dopaminergic axons so I maybe read too much from it but chained this as: exercise -> dopamine -> other goodies -> ... -> profit