Question

Why cannot breathe and swallow at the same time ​

Answer 1

Answer:

When you swallow, a flap called the epiglottis moves to block the entrance of food particles into your larynx and lungs. The muscles of the larynx pull upward to assist with this movement. They also tightly close during swallowing. That prevents food from entering your lungs

Answer 2

Answer:

Sometimes when you're talking, laughing and eating at the same time, your coordination of swallowing and breathing can lapse and result in choking.