So you use the intercostal muscles, the muscles between your ribs, to bring air in and out of your lungs just by expanding and contracting your ribcage, and if I was to put a strap  around the outside of your chest called a breath belt, and just look  at that movement, you see a rather gentle sinusoidal movement, so that's breathing.
Kasutame roietevahelisi lihaseid kopsudesse õhu toomiseks ja viimiseks. Tänu rinnakorvi paisumisele ja kokkutõmbumisele käib õhk sisse-välja . Kui ma paneks andurvöö ümber rinnakorvi, vaadake siin seda graafikut, näete rahulikku sinusoidset liikumist. See ongi hingamine. Te kõik teete seda, jätkake samamoodi.