Though there are hundreds of asanas of which nearly eighty are important, one need not do more than ten or fifteen poses daily to keep healthy. They are simple to learn, especially for young people whose backbone is generally supple.
Once you learn to do them, you will come to love them and their practice will become part of the daily routine. They will make you fresh and cheerful, smart and trim. And all they demand is just thirty minutes of your time each day.