Actually, it is not correlation implied as causation.

See https://www.cell.com/cell-reports/fulltext/S2211-1247(18)304...

"Highlights

•Exercising male mice pass a cognitive benefit to their offspring

•This phenomenon is mediated by altered expression of sperm RNA

•Levels of miR212/132 in sperm play a key role in this intergenerational effect"

This appears to be causation implied as causation.