Respiratory Health

Our lungs and respiratory system help maintain vital bodily functions. This is why it’s important for unto know how to keep it healthy and protect it from illness. Learn all about preserving and boosting your respiratory health, here.


Why do we need to breathe?

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Our bodies need oxygen. ​​Your lungs deliver oxygen to your body through the bloodstream, where it travels to various tissues and organs. Breathing also removes carbon dioxide by releasing it into the air when we exhale.

What is the nasal cavity?

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The nasal cavity is the space inside your nose. The nasal cavity is divided into nasal passages, which are lined with a mucous membrane. Each time you breathe and air passes through, these passages make the air moist before it goes to the lungs. The nasal cavity also has tiny hairs that help filter the air, blocking dirt and dust.

What does the respiratory system do?

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The air we breathe contains oxygen, which is exchanged for a waste gas called carbon dioxide once your cells receive oxygen. Your bloodstream carries carbon dioxide back to the lungs where it exhaled, removed from your blood stream. This process is called gas exchange. Besides gas exchange, our respiratory system also performs other roles, including: - Regulating the temperature of the air, and moisturizing it to reach proper humidity level - Filtering the air and protecting your body from harmful substances through coughing, sneezing, or swallowing - Supporting your sense of smell

How does the diaphragm’s movement cause air to go in and out of the lungs?

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When you breathe in, your diaphragm flattens and becomes smaller while your chest cavity swells up. This creates a vacuum that pulls air into your lungs. When you breathe out, air is forced out of the lungs, shrinking the chest cavity and returning to its dome-like shape.

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