The sun salutation is a complete Ayurvedic exercise also known as Surya Namaskara. This series of postures simultaneously integrates the whole physiology including mind, body, and breath. It strengthens and stretches all the major muscle groups, lubricates the joints, conditions the spine, massages the internal organs and increases blood flow and circulation. Traditionally, it is a cycle of 12 postures performed in a fluid sequence one right after another. Each motion should be synchronized with the breath. Alternatively, you may want to try giving each posture time to activate the movement of prana (energy) by staying in each posture with deep nasal breathing for 1-2 minutes.
If you are new to yoga I highly recommend taking a few classes with an experienced teacher to ensure that you have the proper alignment. If in doubt, move slowly and be gentle with yourself and your ability. You do not need to do the poses perfectly to benefit.
Ideally, perform Sun Salutations for a minimum of 12 minutes each day.