[pytonslange]

> if they're not checking against the option of not eating breakfast at all, then they can't know that it is key to waking up more effectively.

They did, kind of. The factor "waketime to breakfast" [Fig 3] has a beta of .14, which is by far the strongest modifiable factor. This may suggest that not eating breakfast at all may be even better than eating a bowl of sugar.

I really do not understand how the authors fail to even mention this result in the paper.