Parasites & Depression 🦠 Parasites and Depression: The Gut–Brain Connection You Should Know About 🧠 Mental health is often discussed as a purely psychological issue, but research increasingly shows that biology plays a powerful role — especially when it comes to gut health and hidden infections like parasites. Parasites don’t just affect digestion. They can influence immune signaling, neurotransmitter balance, and inflammation, all of which are deeply connected to mood and