Blood sugar test - blood. A blood glucose test measures the amount of a sugar called glucose in a sample of your blood. Glucose is a major source of energy for most cells of the body, including brain cells. Carbohydrates are found in fruit, cereal, bread, pasta, and rice. They are quickly turned into glucose in your body. This raises your blood glucose level. Hormones made in the body help control blood glucose level.
African American Girls Get Earlier Periods. This is an interesting factor that hasn't been fully explained: Race does seem to have a genuine impact on your menarche time. The difference isn't great â in the U.S., the average age of menarche is 12.88 for white girls and 12.16 for African American girls.
The analysis of over ten thousand histories in the United States and Canada by Engelmann showed that the average age at which menstruation begins (menarche) is 13.9 years. [Footnote:] The question of early maturity is not so much one of [geographic] latitudes of the immediate environment of clothing and house heating.ecline in the age of appearance of the menarche during recent decades, from roughly 17 years in 1830 to less than 13 years a century and a half later.. The chart comes from Holland, but probably generally applies to America and western Europe. That line looks too straight to be true.