People sometimes say there's a health and fitness "craze" in the United States.
　　Americans are interested in getting and staying in good shape. All across the country, young people and old are exercising, jogging, riding bicycles and working out at health clubs, trying to keep in shape and stay healthy.
　　People know that exercise and a good diet will help them live longer and happier lives. In addition to exercising, Americans are also eating less salt and sugar and drinking less coffee and tea.
　　Jane Fonda is a well-known American actress. Because of her books, cassettes and videotapes, now she is also a well-known exercise and fitness expert.
　　Ms. Fonda first became interested in a healthy diet in 1967 when she was pregnant with her first child. She became interested in exercising in 1977 when she broke her foot making a movie.
　　In 1979 she opened her own fitness center, Jane Fonda's Workout, in Beverly Hills, California. In time, she opened others.
　　Her exercise program was so popular she decided to write about it. The book, Jane Fonda's Workout, sold more than two million copies in its first five years. The accompanying video is the number one seller in video history.