Humans require relatively little oxygen, and plants are constantly transforming the carbon dioxide we exhale back into useful oxygen.

With patterned breaths, you give two short breaths and exhale the rest of the air through your mouth; using words like "he, he, who" can help you maintain the patterned portion of your breathing.

She teaches classes at the Exhale Center for Sacred Movement in Venice, California and is the founder of the ARRIVE movement, a yoga outreach program for troubled teens based on the theory of somatic healing.

Your obliques engage every time you take a breath, helping to expand and contract the chest cavity as your lungs take in and exhale air.

Be sure that you select a nasal mask that covers your entire nasal area and leaves room at the bottom for you to comfortable inhale and exhale without air leakage.