Just got this tidbit of information from iWon’s daily Health Tip.
The Doubleday and Co. book, Amazing Facts About Your Body, also offers these fascinating facts:
? The average blonde has 150,000 hairs on her scalp.
? A brunette usually has about 100,000.
? A redhead has only about 90,000.
So, it’s not necessarily true that blondes have more fun, they just have more hair.
If we combine that knowledge with this information from The Phrase Finder website
“Let your hair down”
Meaning: Behave in a free or uninhibited manner.
Origin: From the days when women normally wore their hair pinned up.
By that information then, when they “let their hair down” they’re letting go of more hair and therefore could be surmised having more fun.