Thank you for reading the piece, but I think you are off the mark in accusing me of stating a causal relationship:
Here is what I wrote:
"Because the study was cross-sectional (comparing one group to another), the researchers cannot establish any causal relationships. We do not know if the brain MRI differences between men and women, based on body mass index, are due to gender or BMI. There may be some other factors." I literally said no causality. Channeling Jay Z, "What more can I say?"
On the microbiome piece, I may write more about it than anything else!
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Thank you.
Michael