PRANA & ANXIETY

The main purpose of pranayam is to increase the supply of prana in your system, especially into brain. During anxiety the level of prana in the body and brain is reduces. Whole five vayu gets imbalanced. During anxiety we don’t even breathe properly and lungs hence don’t expand or contract to their maximum. Lungs genuine movement gets disturbed.
General anxiety disorder is characterized by more than six months of excessive worry and uncontrollable apprehension. Affected individuals are restless, keyed up, irritable and easily fatigued. They have muscle tension, sleep disturbances, and difficulty concentrating. The degree of anxiety and worry present significantly disrupt the individual's home and work life.
In this critical situation of anxiety, the role of pranayam is very important. If it is practiced regularly, within a weak positive result can be seen. 
Pranayam & Meditation
Pranayam and Meditation should be done in comfortable and most importantly completely quiet environment.
Start straight and eyes closed with visualizing the normal breath for some time and thereafter start pranayam. 
Start with right nostril breathing for 10 minute. Inhale from right and exhale again from right. It is called suryabhedi pranayam. The breath should be deep and with effort while inhaling. And exhale without effort, it should not be too long and deep breath.
Thereafter start from left to left nostril breathing for 15 minute with same term and condition which is being applied before.
Now do alternate nostril breathing for 15 minute.
At the end of this pranayam you must do meditation or relaxation at lying position. 
  Meditation;
Sit in a comfortable meditative pose at distraction free area. This meditation can also be exercised at lying position. Concentrate on your normal breath. breathing should be normal and thought should also be visualized.