Clinical perspective, offered as context rather than as advice. There is a difference between no evidence and evidence of no effect, and this subject is one where the two get swapped freely in both directions.

Happy to go further on any of that.

lucas_SP_BR said:

One habit that pays for itself: post the method alongside the number.

Agreed, and the size of the effect matters as much as its existence. Something real and small gets treated here as though it were real and decisive.

lucas_SP_BR said:

One habit that pays for itself: post the method alongside the number.

Genuinely useful, thank you. I had the facts and not the framework.

Adding the clinical framing, because it changes how the question reads. Order of operations matters more than any single choice here: establish a baseline, change one thing, wait long enough for it to express itself, then measure again under the same conditions.

Moderator note: leaving this open. It is being argued well and the disagreement is the useful part. No action needed from anybody.