Valley Boys Now Make Statements Sound Like Questions

This is Scientific American 60-Second Science. I'm Christopher Intagliata. Got a minute?
"So like I go into this like salon place, y'know/ And I wanted like to get my toenails done/ And the lady like goes, oh my god, your toenails/ Are like so grody]
I'm sure you're, like, totally familiar with "valley speak",
in which speakers end phrases with a rising pitch, so they sound like questions?
The phenomenon's called "uptalk" and it's not just for valley girls.
Linguists say guys now uptalk, too.
Researchers studied the speech of 12 female and 11 male native southern Californians.
The volunteers had two tasks: to recount the plot of a TV episode, and to give directions.
"Start at the college..keep going, towards the grocery store"
Overall, women used uptalk twice as often as men.
Both sexes finished a sixth of their statements with a rising pitch.
But women exclusively also used uptalk to signal they were still speaking to hold the floor.
The researchers presented their findings at a recent meeting of the Acoustical Society of America.
The results suggest uptalk has transcended its traditional demographic...valley girls...to catch on with men.
But no word yet whether other elements of the vernacular have followed suit.
"Barf out! Gross! Gag me!"
Thanks for the minute, for Scientific American 60-Second Science. I'm Christopher Intagliata.