A direct quote from an article in "Yoga + Joyful Living":
"2-TO-1 BREATHING
This breathing pattern relaxes the body by subtly stimulating the parasympathetic nervous system, inducing a state of relaxation. As you lie in bed, gently slow down the rate of exhalation until you exhale for as twice as long as you inhale. You can coax a longer exhalation by contracting the abdomen slightly. Don't try to fill or empty the lungs completely-- you are simply changing the rhythm of your breath. In the beginning it may help to count 6 on the exhalation and 3 on the inhalation, or 4 on the exhalation and 2 on the inhalation (or any other 2-to-1 ratio you find comfortable). Focus on the smoothness and even-ness of your breath, gradually eliminating all jerks and pauses.
COUNTING BREATHS
Using the effortless 2-to1 pattern just described, lie in bed and pay close attention to your breath. It should flow smoothly, evenly, and continuously. When the pattern is well established, take:
- 8 breaths lying on your back.
- 16 breaths lying on your right side.
- 32 breaths lying on your left side.
Very few people complete this exercise. Sweet dreams.*"
* That was actually in there.