yea.. belly breathing ... or how to breath the right way

one ofthe first things anyone should learn... you breath with your diaphragm, like we are supposed to

watch a newborn baby.. or any animal.. you see thier belly rise up when they inhale... why then do we all breath with the top 25% of our chest??

lie down and place one hand on your chest and one hand on your belly... breath so that the hand on your chest does not move at all... but the hand on your belly rises/falls with your breath

as for the other thing thats right arms straight, palms facing the ground, and rotate your arm so that your elbow points away from you, and your thumbs are on the inside, and your fingers are pointing at each other.. your thumbs wont be pointing at you but they will be the closest to you.. .the little fingers should be on the far outside