Environmental intervention can increase a child's general intelligence but the effects are unlikely to be permanent new research has found. The findings suggest that intelligence can adapt to meet increased environmental demands but when those demands are no longer present it returns to its previous level. While both IQ scores and general intelligence can be raised through targeted environmental interventions any gains are not permanent and fade over time said researcher John Protzko from University of California Santa Barbara US. The research was published in the journal Intelligence. Protzko reviewed the results of a study Infant Health and Development Program
