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If you grew up dreading haircuts, you may have been told a popular, yet perplexing myth: Trimming helps your hair grow faster. Seems suspect, considering your hair grows up and out of the scalp. Is there any point of communication between those long, dead ends and your follicles? Or is the myth simply just that—a little white lie to wrangle you in the salon chair when you were little? 

Let's separate fact from fiction.