Mold Exposure & the Brain Understanding How Mold Affects the Brain Toxic indoor mold exposure has become an increasing area of research, particularly in water-damaged buildings. Certain species, including Stachybotrys chartarum — commonly referred to as “black mold” — are capable of producing harmful substances called mycotoxins. While respiratory symptoms such as coughing, sinus irritation, and allergic reactions are well documented, emerging research suggests that mold toxi