They also found that a healthy diet -- low fat and high fruit and fiber intake -- and exercise were linked to fewer gastrointestinal symptoms. But that was only part of the answer. After a more sophisticated analysis, one factor emerged as the most important predictor of gut symptoms: exercise.
On April 21, 2008, lights were again reported over North Phoenix by local residents. According to witnesses, the lights formed a vertical line, then spread apart and made a diamond shape. The lights also formed a U-shape at one time.
Daylight saving time started when war time was established in the United States in 1918 to save fuel during World War I. In Arizona, Maricopa County supervisors refused to accept the change. In 1919, Phoenix and the rest of the state observed different time zones. War time, or daylight saving time, was reinstated in World War II. It was brought back permanently in the Uniform Time Act of 1966. Arizona participated for one summer.