According to a long post by Ryan Adams on the Cardinals blog, Adams is honoring touring commitments with the Cardinals through March and will then walk away from the Cardinals and music in general to focus on his health, his writing, his love life and other endeavors. The Cardinals last show will be in Atlanta.
Known for manic blogging episodes in the past, this post has Adam's pointing out that his recent hearing loss, inner ear imbalance and general health are his main concerns. Whether or not the constant touring of the last 3 years has anything to do with his burnout remains to be seen.
Take care of yourself Ryan and best of luck in all your future endeavors. Hopefully we will hear some music from him in the not too distant future.