1) NNT meta analysis (one of a very large body of literature): https://www.thennt.com/nnt/statins-persons-low-risk-cardiovascular-disease/ https://www.thennt.co

1) NNT meta analysis (one of a very large body of literature): https://www.thennt.com/nnt/statins-persons-low-risk-cardiovascular-disease/ https://www.thennt.com/nnt/statins-persons-low-risk-cardiova... 2) Best I could find in 2 minutes. Will look for the studies. https://www.scientificamerican.com/article/gut-second-brain/ https://www.scientificamerican.com/article/gut-second-brain/