Believe me, I've heard many a 'Dumb Blonde' joke in my day. I suppose that is because I am a blonde.  Get this: The 'Dumb Blonde' stereotype is simply not true!  I am not just saying that because I am a smart blonde, science now has proof!  

The smart folks at Stanford University say there is no genetic connection between intelligence and hair color. They say that hair color is only the result of one letter of your genetic code and not connected to any other traits. Our hair color is the result of a gene called 'Kit Ligand.'  So the next time someone picks on you for your hair color, you tell them, "Hey, it's not my fault that my 'Kit Ligand' made me a blonde, or a brunette, or a redhead...

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They also determined that hair color and eye color are not genetically connected, meaning that blonde hair and blue eyes are not linked together.

You can read further on this topic and the study in the Sydney Morning Hearld. 

I'll have you know that I have both, was born that way, and now I know that I am not a dumb blonde.  Ha!  How many blondes does it take to change a lightbulb? Just one, because they are smart enough to figure it out.  The next time you hear, 'What does a blonde and a beer bottle have in common? They're both empty from the neck up.' Its just not true.  Or, how bout, 'Why do blondes wear their hair up? To catch everything that goes over their heads.' Again, not true.  Or, 'What does a blonde do when her laptop computer freezes? She sticks it in the microwave!'  Ah ha ha... ha ... ha ... ha.  Take that all the people who tell dumb blonde jokes.