If you feel like you are smarter than average, this chart includes science-backed signs you might just be more intelligent than others. From Business Insider, the infographic displays eight things to look out for in total.
If you are the eldest child you could be smarter than average, not due to genetics, but because of family dynamics and psychology. Non-smokers are also more intelligent. While some might argue it is a dumb decision to start smoking in the first place because of the health effects, an Israeli study also indicates smoking decreases your IQ. Music lessons as a child, left handedness, a thin and tall physique are other indicators. If you have done recreational drugs and have a cat you could also be more than mediocre in the brains department.
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