PRIME: How did you get involved with "Boomer Yoga"? Sheila: I've been a student of Beryl's for 14 years. I first met her in 1996, right after she published her first book, "Power Yoga." Being a student, we became friends. I've traveled with her, trained with her, became an assistant and also completed the advanced level teacher training with her. She'd been talking about the book [Boomer Yoga], and, as it was coming time to illustrate it, she asked [my husband] Tony and I to be part of it, and we said yes. We were pose models along with another couple that lives in Vermont. PRIME: What makes "Boomer Yoga" different from other yoga books? Sheila: It was specifically designed for the boomer market. Beryl has had an evolution in her [yoga] practice from her "Power Yoga" book, where the poses were very challenging, vigorous and athletic. I feel she's brilliantly modified the poses to make them accessible to everyone, and added poses into the boomer sequences she calls back and shoulder therapy. She feels [this] is very important for people in our culture, with the way we work, sitting in chairs hunched over computers. When you see the photos in Boomer Yoga you'll be inspired to [try this yoga] practice, not scared away. [Beryl] did a lot of research on the poses. PRIME: Can you be specific about how the book addresses boomer issues? Sheila: A lot of people [in the boomer age bracket] are facing knee and hip and shoulder limitations; every posture in [Boomer Yoga] that she's chosen for her sequence has modifications for these limitations. Also, the book speaks the language of the boomer. It gives benefits and reasons why this practice [of yoga] is so healthy it brings in the health benefits. Again, she did a lot of research.