What Is the Challenge
A new social media challenge known as the Blackout Breath Challenge is spreading through schools across the United States, Australia, and the United Kingdom. At least 47 students have been hospitalized in the past three months.
Why It Is So Dangerous
Dr. Sarah Chen, a pediatric neurologist, explains: When you hyperventilate and then hold your breath, you are depriving your brain of oxygen. Every time it happens, there is a risk of permanent damage.Advertisement
