In fact, a study published in the March 2006 issue of Medicine & Science in Sports & Exercise found that more than half of about 2,000 girls surveyed, all between the ages of 16 and 18, were classified as sedentary. There are various physical benefits associated with being physically active during the teenage years.
Officially called the Commonwealth of the Northern Mariana Islands, the Northern Mariana Islands (also called the Northern Marianas) are composed of 22 islands and islets in the western Pacific Ocean.
Northern Canada, defined politically to comprise (from west to east) Yukon, Northwest Territories, and Nunavut. Northern Canada, colloquially the North, is the vast northernmost region of Canada variously defined by geography and politics. Politically, the term refers to three territories of Canada: Yukon, Northwest Territories, and Nunavut.