Ross E. Goldstein, Ph.D., is the author of Fortysomething: Claiming the Power and Passion of Your Midlife Years. He was a practicing clinical psychologist for 15 years, but his own passion is cycling. Chain Reaction draws deeply on his personal experiences and observations collected on and off the bike in both the United States and Europe. Mr. Goldstein received his Ph.D. from Harvard University and currently lives in Mill Valley, California. He has two children, the oldest of whom has just started his own bicycling racing career. He continues his cycling career along with his writing endeavors.