Everyone's got billions of little critters hanging out in their gut. They're helpful little critters — they aid the digestive and immune systems. But what you eat changes what they are.

To cut, or not to cut? That is literally the centuries-old question. The American Academy of Pediatrics ( AAP ) has wavered on their position regarding circumcision.

Your doctor just told you that you're at risk for osteoporosis. He steps out for a moment, and you wish you could quickly look it up for a summary of the condition. Now you can.

There's no cause for alarm or plans to buy diapers after Maria Sharapova's stomach ache during the gold medal match at the Olympic games. The pain during her loss against Serena Williams in the London finals was just from a stomach virus, not a stork visit.

Most people have heard that it can be more risky to have children after age 35. However, these concerns usually relate to birth complications and not to the children's development.

A study on how ecstasy during pregnancy might affect babies at 4 months old was published early this year. Now those babies are a year old. They're still developing slowly.

Most people have known that smoking marijuana was not safe for pregnancy. Modern, high-potency marijuana poses additional dangers for fetal development.

Having a stillbirth can be one of the most devastating experiences that expectant parents could face. Sometimes it helps to understand the risk factors.

Pregnant women who deliver by cesarean section usually receive antibiotics after the baby’s umbilical cord is clamped. But could meds before the procedure reduce the risk of infection?