Can black mold cause mental problems like depression?

Hard to know: I have not heard of any studies that showed black mold causing depression but mold can cause lots of problems. Best to have a specialist work a person up for mold and to see if treatment can help.

Black mold: Toxic mold can produce neurotoxins that affect nerve cells in the brain, leading to mood swings, irritability, poor concentration, confusion, short attention span, dizziness, anxiety, depression, and hallucinations.