1.) That makes no sense 2.) IQ doesn't change with age, I don't know where people got this idea from 3.) Guaranteed 90% of the people who think they know there IQ, don't. If you haven't taken an official IQ test (a long timed written exam like the Raven, followed by an oral exam done by a licensed psycologist) then you can't trust any "IQ test" be it one done in school or, LOL, the internet ones. My brother took an official 2 1/2 test and was given "in the middle of the one hundred teens". The next month he took the online one you always see and was given a 139. I then proceeded to go through the thing and click all "C's". I was given a 132. I can't remember if I took a real test (I may have, can't recall), but I'd bet mine and most others' here are pretty inaccurate :-$ , especially looking at those figures. I got told that your IQ is your mental age compared with your physical age, so it can change, if your saying your IQ stays the same, what happens when someone suffers a serious blow to the head, pretty sure the IQ may drop a few points, if you study and learn more, pretty sure it can go up.