How to Increase Your IQ: What the Evidence Supports
Two stories compete on the internet about raising your IQ. One says it is fixed at birth and nothing you do matters. The other sells a course that will "unlock" thirty points in a month. Neither survives contact with the research. The truth is in between, and it is more useful than either extreme: some things move your measured score, some move your thinking in ways a test can't capture, and a lot of popular advice does nothing at all. Here is how to sort them.
What "increasing IQ" can honestly mean
When people ask whether IQ can go up, they usually mean one of three things.
- Your score on a test goes up. This is the easiest. Practice with the test format raises scores, sometimes by five to ten points on matrix tests, mostly because you stop wasting effort on understanding the format.
- Your underlying reasoning gets better. This is harder to do and slower to see, but it is real, especially over years of education and demanding work.
- You get better at the things IQ predicts. Learning faster, solving unfamiliar problems, spotting patterns at work. This is the one worth caring about, and the habits below help with it.
Keep these separate. A lot of "brain training" claims quietly slide from the first to the third.
What the research supports
Sleep. A night of poor sleep reduces attention and working memory, the exact skills that tests lean on. The effect of a bad night is bigger than the effect of most training programs. Seven to nine hours is the reliable baseline, and it matters most in the day before you test yourself.
Education and hard learning. A large meta-analysis of natural experiments found that each additional year of schooling raises measured cognitive scores by roughly one to five points. You do not need a degree for this to apply: learning a language, an instrument or a technical skill as an adult puts the same kind of demand on your thinking.
Aerobic exercise. Regular cardio improves blood flow, mood and, in several studies, executive function. The effect on IQ scores themselves is modest, but the effect on how you feel during a 30-minute test is not.
Reading difficult material. Texts that make you pause, reread and build a model of what is being argued train sustained attention and verbal reasoning. Skimming does not.
Practice with matrix and logic puzzles. Reasoning tasks improve the way any skill does: through feedback. You learn to look for rotations, additions and subtractions, and for rules that repeat across rows. This is the fastest route to a higher retest, and the next section shows how to do it deliberately.
A four-week plan that is realistic
You do not need a complicated system. Four weeks of consistent small sessions beats a weekend of cramming.
Week 0: take a baseline. Sit Cognivo IQ Test's 40-question test once, rested, in a quiet place. Save the certificate and read the breakdown of your answers. Note which type cost you the most: matrices, memory tasks, number series or logic items.
Week 1: learn the grammar of matrices. Spend 15 minutes a day on matrix puzzles. For each one, say the rule out loud before you look at the options. Most rules fall into a handful of families: a shape changes size, rotates, gains or loses a part, or follows a progression across the row. The guide to Raven-style matrices lists them with examples.
Week 2: add memory. Work on digit sequences, starting with five digits and moving to seven. Chunk the digits into pairs and say them in a rhythm. Add a daily five-minute session of backward recall, which loads working memory harder. The working memory guide has the details.
Week 3: mix and time yourself. Do mixed sets, matrices, series and logic problems, against a loose clock. Keep a note of your errors by type. Most people find that two or three kinds of mistake account for most of the lost points.
Week 4: rest, then retest. Sleep well for two nights, then take the test again at least three weeks after the first. Compare the breakdown, not only the headline score.
Claims to ignore
- "Listen to this music and gain 20 IQ points." The original "Mozart effect" study found a tiny, temporary effect on one spatial task. It was never a long-term increase and has not held up.
- Supplements that promise genius. For people with a normal diet, there is little evidence that any supplement raises intelligence. Caffeine helps alertness; that is about all.
- Brain-training promises of general intelligence. Training improves the trained task and similar ones. Whether it makes you smarter in general is disputed, and the honest position is that the evidence is mixed. Use games as practice, not as a cure.
- "Using 10 percent of your brain." You use all of it.
Where brain-training games fit
If you enjoy short games for memory, logic and mental maths, they are a perfectly good way to build a daily habit, and a habit is the thing most people lack. After the test, Cognivo IQ Test opens a set of brain-training games, so the same account that gave you a baseline also gives you a place to practice. Treat them as workouts for specific skills, and use the test, not the game scores, as your measure of progress.
Access starts with a 7-day trial for $1.00, then renews every 28 days until you cancel. The checkout shows the renewal amount before you pay.
How to tell if it worked
Three signs, in order of reliability. First, your retest breakdown improves in the area you trained, such as more matrices correct in the harder half. Second, you find the same type of puzzle easier and faster. Third, and slowest, you notice the change elsewhere: following an argument, spotting the flaw in a spreadsheet, picking up a new tool.
Do not read too much into a gain of one or two points; that is within the normal noise of an online test. A gain of five or more, with a clear improvement in the section you trained, is a real signal. If you want a reference for what the numbers mean, the score chart shows how each band maps to a percentile.
The honest bottom line
You cannot hack your way to a different brain in a weekend. You can sleep better, learn harder things, practice the format and train memory, and over a few weeks that will show up in a retest and, more importantly, in how clearly you work through problems. Start with a baseline, change one habit, and measure again. That loop is the whole method, and it is more than most programs that promise otherwise will give you.