As things are slowly returning back to normal after the coronavirus pandemic, it may be tempting to forget all the safety measures and go on with our lives as we did before. But the world has indeed changed beyond recognition and there’s no choice but to go along with it.

And for those who are not into wearing masks for reasons like the threat is over, a mask doesn’t protect from breathing in the virus, and the classic line “can’t breathe with a mask on”, one doctor has something to say. In fact, Dr. Megan Hall has conducted an experiment on wearing 4 different masks for 5 minutes straight to see how they affected her heart rate and oxygen levels. The results are down below and if they don’t convince you, nothing will.

This doctor ran an experiment on how wearing masks affect our bodies and this is what she found out

Image credits: Megan Hall

The matter of wearing face masks has been controversial throughout the pandemic and it’s now become even more so as regulations have eased in many states. Many myths have been circulating around and one of the common ones is that if worn for long periods of time, they complicate breathing. However, it is common for surgeons and other scientists or healthcare workers to wear face masks, particularly N95 respirators, for prolonged periods of time.

USA Today reports that “Neither the CDC nor the World Health Organization has issued warnings suggesting the use of surgical face masks would result in dangerous oxygen level depletion within the general public.”

Dr. Daniel Pahua Díaz, an academic from the Department of Public Health at the National Autonomous University of Mexico medical school, said that “the feeling of lack of air due to mechanical obstruction depends on the type of mouthpiece we are using.” The feeling of obstruction is just because people aren’t used to wearing the mask.

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