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Yes, many people chew gum and talk at the exact same time.While it is possible to chew and talk at the same time, you risk choking on what your chewing on.
We are advised so because while eating some food particles might enter the wind pipe which can lead to choking.
While Choking - 2008 was released on: USA: June 2008 (internet)
This would follow the same principal as swallowing when your upside down. Because humans swallow because of muscles in the pharynx and esophagus, not because of gravity, it must possible to choke when you are upside down.
It's not possible
It is true that you should not talk while you have food in your mouth and it is not really possible to talk while you are taking a drink of a beverage. You may, of course, talk between bites as long as you have swallowed the food.
They could try and eat it, which could lead to choking or consuming toxic chemicals.
The activity may induce choking.
if it goes to your lungs, then choking and death is possible
It can be dangers, because you can run the risk of choking.
It's possible but a bad idea, I wouldn't try it.
He masturbated while choking himself