Because, when you're active and awake and doing more things, your heart is pumping blood faster, causing you to have to breathe faster. When asleep, your body doesn't need as much oxygen, simply because you're not doing anything.
The body is at rest and the muscles and organs are demanding the least amount of oxygen at that time of day, so the heart matches the lower demand by pumping slower.
if they are asleep then their breathing will be slower. also if they're dreaming their eyes will flicker up and down.
So you don't stop breathing even when you are asleep or unconscious.
Generally you breath slower when asleep.
It is a sleep disorder in which a person stops breathing while asleep.
The parasympathetic division.
The Buteyko method strives to remove the bad habits of over-breathing and to replace them with new habits of slower, shallower breathing, called "reduced breathing."
shallow breathing. Basically if it is hard to breathe, like asthma, you'd be breathing slower than the average person which would make your breathing labored.
Your nervous system. Special nerve centers in the brain stem control breathing when you are at rest or asleep.
Snoring, breathing lightly, mumbling an answer or not answering at all.
it isn't, yawning is due to the fact you are breathing slower and not taking in enough oxygen
Its a very special portal where goldfish climb in to keep you breathing when your asleep
When you fall asleep, your breathing slows to like, three breaths per minute. That's why you yawn (because you body fell asleep before you did and you need more oxygen). The heart rate drops to 10 and 30 beats per minute when you're asleep.