Thick, Shiny, Stylish Factoids
To “let your hair down” means to be more uninhibited and honest, and traces back to the days when women kept their hair up except in the privacy of their own home or among intimate company.
Regardless of where it is bought, the vast majority of real human hair used in wigs and extensions comes from the East, especially India, China, and Eastern Europe.
A “hairpin turn” gets that name for its resemblance to a metal hairpin, so usually involves a very sharp 180 degree (or nearly so) turn.
The care of hair (and scalps) is huge business. Despite Covid, this global market was $80.81 billion USD in 2020, and does not include the sale of actual hair products, such as wigs, weaves, and extensions.
“Bigwig” indicates importance because men of influence and rank used to wear large wigs.
Cats cough up hairballs because they clean themselves by licking their fur, and typically swallow some of that fur which is later vomited up.
People with naturally blond hair tend to have the most total hairs on their head at about 150,000, redheads have the fewest at about 90,000, and folks with naturally brown or black hair are somewhere in between.