The cobra: Stand upside down, bring your legs together and stretch them out with your arms bent and your hands at shoulder level. Raise your legs keeping them attached to the ground while at the same time holding your arms and lowering your shoulders, then raise your chin. You should stay in this position for thirty seconds, and then take a break from lying on your stomach. Then you repeat the procedure. The tree: You should stand with your legs straight and your palms above your head, bending your elbows. Lift one of your legs and rest the sole of that leg on your opposite thigh. Hold this asana for 30 seconds and follow the same steps with the remaining leg. The dog on its stomach: First you must be skinned and lean forward until you can rest your hands on the floor, keeping them at a distance similar to that of your shoulders.