This is really hard to watch.
In this video, a woman starts to stumble just before she faints and somehow ends up falling between two train cars as she falls off the train platform.
There are so many ways she could have been killed or seriously hurt. And watch the other passengers on the platform as she falls. Many of them have to look the other way because the result could have been really bad.
According to The New York Post, she tried to warn the person in front of her but she doesn't remember anything after that. She apparently experienced a sudden drop in blood pressure.
Fortunately some rescuers got her out from under the train and got her to an ambulance.
On the London Underground, affectionately known as "The Tube", they have many signs posted along with voice recordings that say 'Mind The Gap'. Now I know why.
Photo credit: TOLGA AKMEN/AFP via Getty Images