As part of the globally diversified company CARLISLEÂ® Companies Inc. , the CARLISLEÂ® Construction Materials Europe Group ( CARLISLEÂ® CM Europe ) is particularly focused on the European market and is the comprehensive specialist in high-quality , high-tech elastomer products for the long-life waterproofing of roofs , structures and cladding systems ...
Most girls get their periods somewhere between the ages of 9 and 16. But it's not unheard of for a girl's period to start before age 9. Rather than age, you can look for signals in your body. Most girls don't get their period until they weigh at least 100 pounds and have started developing breasts.
Menarche is another name for the beginning of menstruation. In the United States, the average age a girl starts menstruating is 12. However, this does not mean that all girls start at the same age. A girl can begin menstruating anytime between the ages of 8 and 16. Menstruation will not occur until all parts of a girl's reproductive system have matured and are working together.