Set your Life… Yourselves

Try to find out the mystery behind this sentence:
 
“I do not know where family doctors acquired illegibly perplexing handwriting nevertheless, extraordinary pharmaceutical intellectuality counterbalancing indecipherability, transcendentalizes intercommunications incomprehensibleness”.
 
 
 
 

This is a sentence where the Nth word is N letters long.

e.g. 3rd word is 3 letters long, 8th word is 8 letters long and so on