what on Earth? who knew lynxes made this sound?
Fits very well with recent(-ish) findings on microglia. Microglia are the brain's immune cells, and they can either be in "doing immune system stuff" mode, OR they can be pruning connections between neurons. They've found lotsa stuff about how microglia spending too much time in "doing immune system stuff" mode is associated with lots of mental disorders. https://www.nature.com/articles/s41467-018-04268-8