" Childhood obesity, widespread in many industrialized countries, is linked particularly to the early age at which the first ...

Medically reviewed by Renita White, MD Your menstrual cycle is the time between the first day of your last period and the ...

A female’s first menstrual period, known as menarche, occurs during puberty. Menstruation indicates that the body is mature enough for reproduction. About 98% of girls begin their periods by age 15.

A new study out of Brazil links early or late menstruation onset to health struggles later in life. How the timing of your first period can influence your risk of obesity, high blood pressure and ...

More than 65 percent of women ages 15 to 49 in the United States use some form of birth control, and many of them are on hormonal birth control methods like the pill, patch, ring, implant, injections, ...

The foods you pack in your kids’ lunch boxes may have an impact on whether they experience their first menstrual cycle too early, according to new research. Eating a more inflammatory diet was ...

Your period could be crampin’ your style — and your future health. Girls are reaching puberty faster than previous generations, a phenomenon perplexing researchers. The average age of the start of ...