No offenses, but I’m gonna put a lot more weight behind a peer reviewed Nature paper, rather than some random podcaster.

The explained their methodology pretty well. They extrapolate the microplastics amount from a small bit of cortical tissue, and compared it to previous results. Yeah there might not be as much in other parts of the brain, but we don’t have a reason to think it would be drastically different.

It’s up to a credit card now (9g)

Source

Neither are really bread as they are not leavened with yeast.

Based on Wikipedia I think the unit is milligals, where a gal is 1 centimeter per second squared.

That is a bit of an odd unit where g is ~980,000 milligals.

So these changes are extremely small.

So then the total variation is all within about 0.02% of gravities normal value