How do pads, tampons, and menstrual cups work? How often should I change my pad or tampon or empty my menstrual cup? What problems with my menstrual period should I see my doctor about? When should I begin seeing an obstetrician—gynecologist?

A healthy body image is an important part of a growing girl's self-esteem. Understand what you can do to help your daughter feel comfortable with her body. Girls often face significant pressure to look attractive. The quest for a perfect body or appearance can take a heavy toll, though. Find out what you can do to help your daughter develop and maintain a healthy body image and self-esteem.

Reproduction is the process by which organisms make more organisms like themselves. But even though the reproductive system is essential to keeping a species alive, unlike other body systems, it's not essential to keeping an individual alive. In the human reproductive process, two kinds of sex cells, or gametes GAH-meetz , are involved. The male gamete, or sperm, and the female gamete, the egg or ovum, meet in the female's reproductive system. When sperm fertilizes meets an egg, this fertilized egg is called a zygote pronounced: ZYE-goat.

Love the way you look! Help your kids -- and yourself -- maintain a healthy body image. Summer is upon us, which usually means bathing suits, tiny shorts and overuse of the phrase "beach body" by every fitness and diet commercial out there. If you're struggling with body image issues, particularly after having a baby, summer can be