Practising ‘belly breathing’ can ease high blood pressure and chronic pain
Learning how to belly breathe can have a huge impact on your health as it relaxes the body, reduces inflammation and limits ...
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The respiratory system in humans – WJEC
Breathing out through the mouthpiece bubbles exhaled air through tube B. After a few breaths the limewater in tube B will turn cloudy as the exhaled air contains more carbon dioxide.