In reply to john morrissey:
Hi, Yoga has certainly helped my flexibility, and at fifty I am probably more flexible now than in my thirty’s. Personally I do not think I would take to or keep up Yoga practice if my introduction was an on-line video.
Also yoga can be more than an exercise, with the breathing and relaxation both adding to the benefit of the practice. The contribution to the benefits for climbing go beyond just flexibility.
I would suggest finding a class and being taught, having a trained teacher might help avoid the potential injury others have mentioned.
Classes range from cringe worthy hippy trippy to one click away from structured exercise alone. You take what you want from a class.
More than flexibility, practice of holding poses for extended periods clearly has benefit in climbing , as does regulating breathing.
Extra bouldering with sit starts will also help.
Also, see improvement in months and years, not weeks. If you couldn’t do the splits as a child then you probably won’t now. Be realistic and over time improvements creep up on you.
Good lucK
Wayne