This is a variation of the Alternate Nostril Breathing Technique called "Nadi Shodhana", with its focus solely on the solar (Pingala Nadi) channel, inviting warmth and stimulation throughout the nervous system.
Step 1: Sit in a comfortable seated position.
Step 2: Close your eyes and position your inner gaze upon the center of your eyebrows.
Step 3: Take your right hand and simply extend your thumb and ring finger out, while the index and middle fingers collapse towards the center of the palm. Some people find this hand positioning (which is a sort of mudra) to be difficult, so I recommend just using the thumb and index fingers, while the other three fingers collapse towards the palm center. The point of this mudra is to make sure you have form of a hook.
Step 4: Using index finger, press the left nostril shut, while the right remains open.
Step 5: Inhale through the right nostril.
Step 6: Pinch the right nostril shut with the thumb.
Step 7: Release the finger from the left nostril and exhale.
Step 8: Pinch the left nostril shut again with the non-thumb finger.
Step 9: Release the right thumb from the right nostril.
Step 10: Repeat steps 3-9
The usual repetition of this is 3 round of 27, to start with. Or, 10 minutes worth of repetition. The breath must be deep, full and mindful. Not rushed or shallow.
This technique can be done every morning. You can do it before exercise or after. To get things moving. If you're not exercising then you can do this before showering. Additionally, it is a great technique to stimulate digestive activity and can be done before each meal. Say a few rounds or 2 minutes worth.
It's also a great technique to stimulate sympathetic activity and address lethargy and melancholy.
DISCLAIMER: This information is meant for educational purposes only and not considered medical advice. Any changes in lifestyle should be reviewed with a qualified practitioner and/or primary care physician if you are currently under their care for specific conditions.