system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it nearly impossible to breathe when strong winds hits your face?

For example, when you lean out from the car window when driving, or when it's just storming outside, it feels like the throat is "closing" and makes it really hard to take a breath.
gpt
So when air (a gaseous substance) is in motion it creates a low pressure zone, as opposed to stagnant air. Your lungs work by expanding and creating a low pressure zone for the surrounding air to push into and then by compressing and creating a high pressure zone the air in your lungs is pushed back into the lower pressure surrounding air. When you try and breath in a low pressure environment, like your head out the window, you are fighting a very low pressure environment with the comparatively high pressure air in your lungs. in essence 'sucking' the air out of your lungs. Think of it like the opposite of when you are blowing up a balloon, its harder to blow more air when the balloon is full. as opposed to when it has less air in it. (ignoring the initial push to get the rubber to expand at the very beginning)