PedsEndoPhilly said:The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either.
Correct, and worth adding that it is reversible. Nothing being described here is a one-way door, which changes how cautious it is reasonable to be.
rachel_ABQ said:That holds where the measurement is reliable.
Saving this. It is the first explanation that did not require me to already understand it. Sending this to two other people who asked me the same thing last week.
PedsEndoPhilly said:The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either.
I read this differently from PedsEndoPhilly, on substance rather than tone. This treats a plausible mechanism as a demonstrated one. Plausible is where you start looking, not where you stop.
Happy to go further on any of that.
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Browse GL BiochemAdding the numbers, since they settle part of this. Say what you would expect to see if you were wrong, before you look. It is a small discipline and it changes what you notice.
That is the short version; the long version is somebody else's post.