This book was not poorly written, however, I found it somewhat tedious to read. The author spent far too much time discussing the history of yoga and various individuals involved with it past and present. Such things do not interest me in the least otherwise I would have picked up a book titled "The History of Yoga". There are some scientific studies discussed throughout but limited considering the title of the book and since I was looking for the SCIENCE, I was disappointed. Also, many of the risks are pretty obvious if you take any time to actually think about the positions and how the human body works. I think the author should have included ways to limit risks and to make positions easier on the body when they were mentioned as potential hazards. The author also tended to mention that specific positions could do this or that for you but never actually mention specific poses. So what exactly is the point of mentioning it? Overall I recommend if you prefer more of a history and discussion about yoga rather than scientific studies and how to avoid the risks of the practice.