English Language · English
Which of the following best captures the central thesis regarding the gut-brain axis?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Because gut bacteria synthesize neurotransmitters like serotonin, traditional psychiatric medications are rendered entirely biologically inert.
- 2The widespread use of broad-spectrum antibiotics is the sole etiological driver of modern psychiatric disorders like clinical depression.
- 3Human cognitive and emotional health is fundamentally governed by a bidirectional network between the brain and gut microbiota, demanding a shift away from isolated biomedical models.✓
- 4The blood-brain barrier is an outdated anatomical concept that fails to account for the neurochemical superiority of the enteric nervous system.
Correct answer
Human cognitive and emotional health is fundamentally governed by a bidirectional network between the brain and gut microbiota, demanding a shift away from isolated biomedical models.
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