7 Therefore, the PRODUCER shall have the right to manufacture, publish, sell by way of any medium (audio cassette, CD, DVD audio or other existing formats) or via online communication networks (Internet and others), and communicate to the public in any format the phonograms defined in Article 1.
This is how are lungs operate. Inside our bodies, at the base of our lungs there is a membrane called the diaphragm. When you inhale, your diaphragm contracts and flattens out, increasing the volume and decreasing the pressure in your chest. Because you have more room air gets sucked in through your mouth and nose and into your lungs, just like it did in the balloon, and then your lungs fill with air.
The fact is, with your belly held very tightly there will be much less downward movement of your diaphragm on inhalation since there is so much resistance from the abdominal muscles and viscera to this movement. And, if there is little downward movement on inhalation, there will be little upward movement on exhalation. So you will feel a lot of tension and effort in your breathing, which will often become less efficient, shallower, and faster, driven mainly by the secondary breathing muscles of the chest.