[kijin]

Depends on where the sand is. I don't want that stuff in my lungs.

[pulvinar]

Lungs have been dealing with sand dust since there were lungs, have they not?

Honest science on a foreign material in the brain or body should be able to present a baseline amount of total foreign material for comparison.

If our environment is now 10% microplastics, then 10% of the foreign material found in the brain being microplastics would be normal.

[drawkward]

Such an easy point, and yet the parent posters dont get it...