🪱 Parasitic Infections 🏥 Indeed Alter 😡 Mood

Yes, parasitic infections can indeed alter mood. Parasites can affect the central nervous system or disrupt neurochemical communication, leading to changes in behavior and potentially mood disorders. The Conversation highlights how gut microbes can even affect neurotransmitter production, influencing anxiety-like behaviors and other nerve-related functions.

Here's a more detailed look:

Toxoplasma gondii (T. gondii):

This common parasite, spread by cats, has been linked to personality changes, mood disorders, and even psychiatric disorders like schizophrenia and bipolar disorder. Scientific American suggests that T. gondii might manipulate our behavior, potentially leading to risky choices or even an increased attraction to cats.

Other Parasites:
Besides T. gondii, other parasitic infections like echinococcosis, schistosomiasis, and coenurosis can also cause symptoms like seizures, headaches, personality changes, and mental impairment.

How Parasites Affect Mood:

Parasites can alter mood through several mechanisms:
Infection of the Central Nervous System: Some parasites directly invade the brain, causing inflammation and affecting neurotransmitter balance.
Disruption of Neurochemical Communication: Parasites can interfere with the production or function of neurotransmitters like dopamine, serotonin, and glutamate, which play a crucial role in mood regulation.

Immune System Response: The immune system's response to parasitic infection can release inflammatory cytokines that can also affect mood.

Examples of Mood Changes:

Research has linked parasitic infections to various mood changes, including:

Depression and Anxiety: The Conversation and Wiley Online Library have demonstrated links between T. gondii infection and higher rates of anxiety and depression.

Aggression and Rage: Some studies suggest that T. gondii may be associated with increased aggression and intermittent explosive disorder.

Personality Changes: T. gondii has been linked to personality changes, including decreased conscientiousness and an increased risk of engaging in risky behaviors.