Belly breathing is a very important skill in freediving. But to tap into the full benefits of belly breathing, or diaphragmatic breathing, freedivers inhale for 1-2 seconds and then exhale for 10 seconds. This is a great way to tap into a calm and relaxed state, while also becoming familiar with an important breathing muscle, called the diaphragm.
Check out the video below to learn how to extend your exhale while belly breathing.