THIS Is why flight attendants tell you to secure YOUR mask before helping others
July 23, 2016
You've heard the flight attendant say this before: "Secure your own mask before helping others." But why?
Hypoxia sets in.
In this video, Destin Sandlin of Smarter Every Day demonstrates what happens to your brain when you lose oxygen at high altitudes and how important putting your mask on first truly is.
Dogs Are Forced To Wear The Things They Steal — And It’s Hilarious
Meet Nazgul: The Dog Who Crashed An Olympic Ski Race And Nearly Won
She Was Feeling Low On Confidence, So Her Classmates Covered Her Desk In Sticky Notes
A Childhood Bond Reunited: Firefighter Saves The Horse That Taught Him To Ride
She Collects Trash 5 Days A Week With Her Dog — So A Resident Gifted Her Dog A Matching Vest
This Baby Giraffe Named Eugene Was Born With The Most Hilarious Tuft Of Hair You’ve Ever Seen
She Gave Her Dad The One Thing He’d Been Searching For His Whole Life
Son Stops Mid Race To Give His Mom A Kiss During The Special Olympics
Reporter Asks Eileen Gu 'Do You Think Before You Speak?' — Her Answer Is Going Viral
He Went Back To Pay The Man Who Helped Him — But That’s Not What Happened
A Mom Saw A Soldier Who Didn't Have Any Family... So She Hugged Him
