Every yoga asana has been made with the intention of being useful to the different parts of your body. All the yoga asanas you would learn or must have heard about would be useful one way or the other. Viparita - would mean inverted, opposite karani would mean - in action, an act of doing. It is also known as the leg-up-the-wall-pose. Most of the yoga positions keeps your feet on ground but this position does the opposite, helping you ease up your muscles by the flow of blood from the leg to your head.
This inverted position leads to increase in blood flow to your upper body as well as to your brain which is very useful to maintain your blood pressure. The longer you be in this position it will be more beneficial to you. Your day long or week long fatigue would go away and gets you refreshed. It can be termed as one of the best medicines to revive you from the feeling of exhaustion and fatigue.

This helps in many ways to calm your nervous system which would have worn out by excessive use. This asana would help you in all the possible ways to restore your health. While doing this asana by concentrating on your testes or ovaries, it can prove to be very beneficial to your reproductive system. This asana helps you keep your strength and vitality intact. It prevents premature aging by giving you a wrinkle free skin. Your thyroid glands also functions with more energy to prevent any thyroid problems. It also lessens your menstrual discomfort.
While doing this asana do not stretch yourself too much. Start off with minimal seconds and then gradually and slowly increase the duration for ten minutes. People who have health conditions should consult their doctor before practicing these asanas. As many of these asanas have unknown facts which should be clarified.