let's say you get pushed out of a space you're in outer space but you don't have a space suit on your gut instinct you're going to hold your breath but that's the wrong thing to do cuz actually you should exhale and the reason is there's a quick shift in the air pressure it's actually going to suck out all the air inside your lungs and your sinus and your ears pretty painful so then you're going to get dizzy and nauseous and actually it'll force a bowel movement but you're really not thinking about that at this point
right because the liquids in your tissues they're going to turn into gas and that's why you start swelling up twice your size but since you don't have oxygen in your lungs to feed your brain you're not going to comprehend that you're just going to pass out in 15 seconds and that might be a relief because after 90 seconds unless someone rescues you you're pretty much going to die from asfixiation