A number of yoga classes are conducted through adult education programs and at various yoga centers located in different states. You can get information about yoga centers on the internet. There are many private yoga teachers who conduct classes to give you personal attention.
Though you may be very keen to do yoga exercises the key is enrolling in a right yoga class which has an expert yoga instructor who will look into your personal needs. It is also important that you must know your limitations and goals.
Though the advantages and disadvantages of yoga are well known, very little is known about the yoga instructors. Therefore, before plunging in to yoga classes you have to find the right yoga instructor for it is his/her handling the yoga exercise(s) that either benefits you or may harm you in the long run.