Nadi Shodhana (Alternate Nostril Breath)
Inhale through right nostril, exhale through left nostril, inhale through left nostril, exhale through right nostril, repeat for 10 rounds at a time, monitoring the effects.
Digital Method: With right hand touch index and middle fingers to forehead, close right nostril with thumb and left nostril with ring finger in the sequence above. Do not turn head toward hand but bring hand in front of face. This method has a stronger affect and is best done in a seated position.
Psychic Method: Breathe in and out through alternate nostrils using your imagination. This method has a subtler affect but is easier to do lying down.
Benefits: Balances the sympathetic nervous system (fight or flight) and the parasympathetic nervous system (rest and digest), increases communication between the right and left hemispheres of the brain.