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.
It is one of two territories with  commonwealth  status; the other is Puerto Rico. It consists of fifteen islands in the northwestern Pacific Ocean. The CNMI and Guam together comprise the Marianas archipelago. The United States Department of the Interior cites a landmass of 183.5 square miles (475.26 km 2).According to the 2010 United States Census, 53,883 people were living in the CNMI at that time.he CNMI and Guam together comprise the Marianas archipelago. The United States Department of the Interior cites a landmass of 183.5 square miles (475.26 km 2). According to the 2010 United States Census, 53,883 people were living in the CNMI at that time.