Is Your Breathing Rate Too High?

When your heart starts beating really fast, it gets to point where even though you have ay a very well trained heart, the heart isn't able to fill up in between beats. So you can have a less efficient heart. Same sort of thing when you breathe in the air, that air has to make contact with the inside of the lungs and then there's what's called the gas exchange. If your breathing rate gets too high, you're not going to sufficiently fully take the oxygen out of that air before you're trying to force that air back out. Do i have this completely wrong? No, i think you're really right on the spot.