Everything depends on your mental attitude.
This is the only advanced pose (Firefly Pose) I know that you can run away from the police in.
People become depressed when they neglect their spiritual practice.
Without the Yamas, known as the ethical rules, there is no success in Yoga
Don't teach too many postures; just the main ones, and hold them for a long time.
There are young people today that move like old people from eating too much junk food and not getting enough exercise.