We all know that we breathe in oxygen to live, as it is important in cellular respiration particularly to break down food into energy. We eliminate one of its byproducts, carbon dioxide (CO2), by exhalation.

Learn how carbon dioxide can be beneficial for stretch marks, dark circles, and more. Follow the link below:

http://lifestyle.mb.com.ph/2017/06/20/is-co2-4-u/

 

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