The Science of Yoga

of Time magazine.
    Calm at the center of the storm? Yes, thanks to Ellen Patrick of Yoga Sanctuary in Mamaroneck, New York, to Athina Pride of the Infinite Yoga Center in Larchmont, New York, and to Jessica Thompson of the Yoga Loft in Bethlehem, Pennsylvania. Franklin Shire was as much fresh breeze as yoga instructor.
    Good friends practiced the disciplineof hearty encouragement and good cheer. Thanks to Jane Elkoff and Peter Gregersen, Rima Grad and Neil Selinger, Abby Gruen and Bob Graubard, Marnie Inskip and Dan O’Neill, Sophie and Tom Kent, Martha Upton and Peter Davis, Catherine and Stuart Wachs, and Sarit and Harry Wall.
    Friends at the Larchmont Public Library—icons of professional courtesy and restraint—put up with years of hectoring. Many thanks to Frank Connelly, Paul Doherty, Nancy Donovan, Liam Hegarty, and June Hesler, as well as the many unseen hands of the Westchester Library System.
    Colleagues at The New York Times offered advice, support, and considerable help in gathering papers and other materials. Thanks to Lawrence K. Altman, Pam Belluck, Toby Bilanow, Benedict Carey, Laura Chang, David Corcoran, Henry Fountain, Denise Grady, Erica Goode, James Gorman, Leslie Kaufman, Soo-Jeong Kang, Gina Kolata, Mireya Navarro, Tara Parker-Pope, David Sanger, Elaine Sciolino, Barbara Strauch, and Nicholas Wade. Thanks, too, Gina, for Ultimate Fitness .
    A number of specialists, colleagues, and family members took time to comment on all or part of the manuscript and helped improve it in countless ways. Many thanks to Chris Arrington, Brenda Berger, Carole Anne Broad, Charles A. Broad Jr., Mary Broad, Christina Bryza, Bobby and Lindsey Clennell, Jane Elkoff, Daniel Goleman, Randi Hutter Epstein, Jane Keogh Kelly, Sharon Maier, Jarl Mohn, Luis Parada, Franklin Shire, Mark Singleton, Stuart Wachs, and Nicholas Wade. Special thanks to Jarl and Nicholas for thoughtful suggestions.
    My illustrator, Bobby Clennell, teaches yoga in New York City, has studied with Iyengar in India, and has authored two yoga books of her own— The Woman’s Yoga Book and Watch Me Do Yoga , for children. She and her model, Lisa Rotell, performed the magic of turning abstractions into revealing images both instructive and elegant.
    My agent, Peter Matson, offered encouragement, good advice, and unfailing good humor throughout the book’s ups and downs. I find myself ever more in your debt, Peter. Thank you.
    My gratefulness to Alice Mayhew, my editor at Simon & Schuster, goes beyond words. Her thoughtful advice and relentless enthusiasm brought this book into the world. We’ve done other projects together but this one required unusual skill and sensitivity. Thank you, Alice—and thanks to your many gifted associates at Simon & Schuster, most especially Roger Labrie. Thanksalso to publisher Jonathan Karp, Irene Kheradi, Nancy Inglis, Renata Di Biase, Julia Prosser, and Rachel Bergmann. No turn of phrase can express the depth of my gratitude.
    Over the decades, I have learned to rely on Tanya Mohn, my wife, and my three children, Max, Isabelle, and Juliana, for endless support, forbearance, and love in this crazy process of book writing. Thanks, guys. You are my prana. And thank you especially, Tanya. You are not only my life energy but my ethicist and guru—among other roles. Your counsel and wisdom typically become the best parts of me. Namaste.
    Finally, I’d like to honor the memory of Nancy, a much-loved sister lost to cancer. More than forty years ago she played an important role in getting me interested in yoga and pursuing it as a life discipline. For that, Nancy, you will always hold a special place in my heart.
    William J. Broad
Larchmont, New York
November 1, 2011

About the Author
    WILLIAM J. BROAD has practiced yoga since1970. A senior writer at The New York Times , he has written hundreds of front-page articles and won every major award in print and television during more than thirty years as a science journalist.With Times colleagues, he has twice won the Pulitzer Prize, as well as an Emmy and a duPont. He is the author or coauthor of seven books, including Germs: Biological Weaponsand America’s Secret War (Simon & Schuster, 2001), a number one New York Times bestseller. He has three adult children and lives with his wife in the metropolitan New York area, where he enjoys doing Sun Salutations.

About the Author
    WILLIAM J. BROAD has practiced yoga since1970. A senior writer at The New York Times , he has written