So little is understood about the effects of chemotherapy on a developing baby that doctors are still learning about how safe treatment is during pregnancy.

Being overweight or obese during pregnancy can put women at a higher risk for gestational diabetes, which increases the risk of birth complications.

The risks related to drinking during pregnancy are not limited to fetal alcohol syndrome. A baby's exposure to alcohol before birth can also mean poor growth.

Steroid abuse is always bad, but for teens the damage can be more serious and last longer. Steroids can change the way an adolescent’s brain develops and vital organs function.

Experiencing abuse as a child means more than a higher risk of mental illness. Researchers are learning that abused children are at risk for various long-term physical issues as well.

When California had the highest number of pertussis cases in six decades in 2010, public health officials took notice. Pertussis (whooping cough) is especially dangerous for babies.

While most people have heard of postpartum depression, prenatal depression can also affect about one in five women. Yoga might be one method to deal with these emotions.

Saying "thank you" is likely one of the earliest behaviors parents teach their children. If kids can maintain gratitude through adolescence, they may have better overall mental health.

Being obese and pregnant can carry a range of risks to the mother during pregnancy, but it also has consequences for her baby, in the short-term and the long-term.

When you're pregnant, you try to avoid putting any unnecessary chemicals into your body. But what if you're an expectant mom with inflammatory bowel disease – is it safe to take your meds?