What is the direction of causality here? Being physically able to bike to work inherently filters out a lot of at-risk groups. It’d be good to actually be able to read the study in order to check the methodology, and whether they compensate for these sorts of things.

Unfortunately, the uploader does not reference the source, which makes it difficult to check, and I’m not going to watch an entire video essay to try and find a reference in there (if it even exists).