"I collapsed on the crowded subway during my commute today;;"
"Suddenly, I couldn't hear anything and my vision went completely dark ㅠㅠ"

Fainting stories frequently popping up on social media and online communities.
It's hard to dismiss this as something experienced by only a few,
given that every time such a post goes up, a flood of empathetic comments follows.

Isn't it serious if you lose consciousness, even for a moment...?

This 'condition' is known to occur particularly often among young people in their 20s and 30s, especially women.
Why does it happen, and are there ways to prevent it?
Subusnews looked into it.

Producer Kim Hye-ji | Editor Lee Sang-hee | Design Kim Tae-hwa, Kim Ha-kyung | Narration and Producing Intern Park Hyo-bin | Director Dasom