Can radon gas cause migraine headaches?   No, exposure to radon gas, even a large amount, won't give you a headache. Radon is an inert or noble gas, and it is radioactive. Radon exposure is a bad thing as it is â¦the second most common cause of lung cancer. But you won't be able to detect radon by any of your senses, and it will not directly cause you to be sick or for a migrane to appear.
The highest possible IQ today. The highest possible IQ today is about 160. However, this is a test limitation and is not necessarily representative of the true intellectual prowess of people with this score. The IQ score. An IQ score is actually a standardised ordinal score.
As for your question, from the definition (as explained above) there really is no theoretical 'upper limit'. But, in practice, IIRC the highest IQ score ever recorded (200+) was for a Korean child of about 8 or 9 years of age. Also, an IQ score of more than about 140 or so usually doesn't mean much. That is, a person with an IQ of 170 may or may not be smarter than someone with an IQ of 150 on the same test. HTH Doug.