âEmptyâ literally means âcontaining nothing.â When it comes to food, empty means that that food contains little or no essential vitamins or minerals. In other words, these foods provide nothing of value to your body beyond calories that create excess pounds.
While menstruation usually begins between ages 12 and 13, it may happen at a younger or older age. The first menstrual period is called menarche.. The menstrual cycle is about four weeks long, starting on the first day of bleeding and ending when the next period begins. However, it can vary greatly when a girl first starts her period. It may skip months or come several times per month in the beginning.
An average period can last anywhere from three to five days; it can be shorter or longer than this, but itâs typically no longer than 7 days or a week. A textbook menstrual cycle is 28 days (from one period to the next; this is the average length of a period or menstrual cycle). However, it is very common for adult women to have menstrual cycles that range anywhere 21 to 35 days.