Take the test..
The following was developed as a mental age assessment by the School of Psychiatry at Harvard University. Take your time and see if you can read each line aloud without a mistake. The average person over 40 years of age cannot do it!
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>1. This is this cat.
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>2. This is is cat.
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>3. This is how cat.
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>4. This is to cat.
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>5. This is keep cat.
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>6. This is an cat.
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>7. This is old cat.
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>8. This is fart cat.
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>9. Thisis busy cat.
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>10. This is for cat.
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>11. This is forty cat.
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>12. This is seconds cat.
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>Now go back and read the third word in each line from the top down and I betcha’ you feel kind slow. LOL 
