There are as many different yoga classes as there are yoga teachers.
If you want to de-stress, look after your back, work on core strength and flexibility, spend a bit of time upside down, or you just want to be able to get up and down off the floor without falling over, then it’s worth trying a class. If you don’t enjoy the class, try another teacher. There are faster-paced classes, slower ones, more spiritual ones, less spiritual ones and so on.
In the mean time, here are a few facts about yoga.
1. You don’t need to be flexible to do yoga.
Yoga will make you more flexible, so don’t be put off because you can’t touch your toes or sit on the floor. A little time and patience is all it needs. You may never manage to wrap your feet behind your head, but you don’t actually need to.
2. Yoga is not a religion, and you don’t have to “om” if you don’t want to.
You can believe whatever you want. Come to yoga to feel better, and to maybe make being in your head a slightly less complicated experience. Incidentally, there are various interpretations of “om”. I like the idea that “om” represents the sound of the universe.
3. Yoga teachers are obsessed with how you breathe.
There have been a lot of studies done on breathing. If you tend to shallow breathe, using the shoulders and chest rather than the diaphragm, you will make yourself feel more tired and more anxious. Shallow breathing has been linked to chronic fatigue conditions. So yes, yoga teachers like to make sure you’re breathing properly.