Is raising IQ actually possible or is it fixed for life? I keep seeing ads for brain training apps claiming they can boost IQ by 10-15 points, but that sounds too good to be true. Can you genuinely increase your intelligence or are these companies just selling snake oil?
Most brain training apps are misleading. You might get better at the specific games, but that doesn’t translate to actual IQ gains.
IQ is relatively stable after childhood, especially the genetic component. Brain training apps that claim 10-15 point increases are essentially scams. They confuse practice effects and task-specific improvement with actual intelligence gains. Early childhood interventions like quality education and nutrition can impact IQ development, but once you’re an adult, meaningful IQ increases are extremely rare. The studies claiming big gains from computer games often make basic psychometric errors like treating change scores as IQ increases, which any proper psychometrician would flag as invalid.
Entire populations have seen IQ scores rise significantly over the past century, yes the Flynn effect. This happened not because human brains evolved, but because societies changed: better nutrition, more years of formal education, and greater exposure to abstract thinking. This tells us that IQ is deeply sensitive to environment. If civilization-wide changes can shift scores upward for millions of people, then dismissing the idea of individual improvement seems inconsistent. The brain-training apps, however, are a different matter since they train the test, not the mind.
For many people, low IQ scores reflect suppressed potential, not fixed limits. Chronic stress, poor nutrition, sleep deprivation, trauma, and lack of stimulating environments all depress cognitive performance. Removing these obstacles can produce substantial gains. So instead of chasing a higher score, the goal should be removing the weight that holds the mind below its natural level.