Parasitic Mind by Gad Saad

How Infectious Ideas Are Killing Common Sense

Using an evolutionary-psychology perspective, the book argues that certain ideologies—such as postmodernism, cultural relativism, identity politics, and other faith-based convictions—act like “idea pathogens” that infect minds, erode critical thinking, suppress free inquiry, and threaten scientific and liberal values; through personal anecdotes, cultural critique, and appeals to empirical evidence it advocates for intellectual hygiene—defending reason, free speech, and evidence-based thinking to inoculate society against these harmful ideas.

Purchase from Bookshop.org