Yoga teaches that a safe practice is the best yoga practice.
The safest yoga pose among the choices is the ear to shoulder stretch. This pose is achieved gently and slowly and the person can determine how the deep the stretch is. This pose relieves neck and shoulder tension.
Yoga plough, Hurdler stretch and Full Circle stretch are advanced yoga poses best learned gradually with a teacher.
Yes it is a good way to be positive
I beleve they have to get recertification every year but I may be wrong, with me reserach this is what I believe to be the correct answer