Pranayama
Pranayama, the combined form, loosely translates to "breath control." It's a yoga practice that involves using certain techniques and exercises to regulate your breathing. Through a combination of breathing, exhaling, and holding the breath, the goal is to relax the mind and body. Yoga theory states that breath is the way we take in and interact with the subtle life force energy that surrounds us. When we’re able to make breathing a mindful practice, we’re able to invigorate our bodies with this life force and change the way that our central nervous system reacts to stress.
The original formula for breath control is a 1:4:2 ratio. Inhale (Purak, in Sanskrit) for 1 second, retain the breath in the body for4 seconds (Kumbhak, in Sanskrit) and exhale for 2 seconds (Rechak, in Sanskrit). Advanced breath work also incorporates different bandhas (binds) in the body. If you seek to learn more about these binds, please do so with a professional yoga teacher who is well versed in this type of instruction.