<span>Here are some problems caused by inconsistent use of daylight saving time: <span>Increases the risk of heart attack and strokes - heart attacks may occur often because of the stress of starting a new work week and changes in their sleep-wake cycle.Sleep deprivation - setting the clock forward 1 hour for daylight saving time might mean losing an hour of sleep on the morning after the change.<span>Increases car accidents - losing hours of sleep cause people to struggle to stay awake behind the wheel resulting to higher risk of car crash.</span></span></span>
For most of its early history, the United States played a small role in world affairs. But in the late 1800s, some of America's leaders called for the nation to join the ranks of the world's major powers. As a result, the United States began to acquire influence and territories outside its continental borders. The country was abandoning isolationism and emerging as a new power on the global stage.
