Bad is such a value-laden word...
Sounds like you might want running advice. Slow and deep or quick and shallow. Which is going to provide you with better oxygen transfer sounds like the question. Recognize that you have a biological dead air space where no respiration occurs. If you breathe shallowly and don't take in more than about a pint at a time, you will suffocate because fresh air is not getting into your lungs.
When you breathe deeply, you are getting the maximum quantity of fresh air with oxygen into contact with lung tissue. Deep breathing is, therefore, more efficient. While you are training yourself to breathe deeply, practice breathing through the nose rather than through the mouth. Your nose will condition the air and prepare it for the lungs.
FAST
just breathe slowly.
They don't breathe in the same way as we do as they don't have lungs.
False, the more oxygen you need the faster you will breathe.
They breathe too much oxygen. This causes light-headedness. Breathe slowly for awhile or breathe into a paper bag to raise your CO2 .
Relax your boyfriend by encouraging him to breathe deeply and slowly.
Fairly slowly
Dramatic and fast weight changes stresses your body, your heart and your immune system. And, since you're likely to put that weight back on since you've lost it so fast, you could start a cycle of yo-yo dieting that will affect your health in a bad way. Losing weight slowly, however, allows your body to adjust to the changes slowly, which lessens the stress on your body.
slowly
Breathe slowly, try to forget the things that you are scared of and calm down.
breathe and keep a clear mind
Ofcourse It is bad .It's toxic .