Not all women’s bodies act the same before early labor. One small study reports that race as well as the presence of specific bacteria are two factors that play a role in preterm delivery.

We all know that stability is important for healthy development in childhood. Moving frequently can be a factor that disrupts children's social stability.

If you've ever looked at someone else and either wished you were doing as well as that person, or been relieved that you weren't as bad off, you aren't alone.

Skin acts as a barrier to environmental exposure and may play a role in asthma. A possible protein mutation may increase exposure to irritants leading to asthma development.

Many pregnant mothers are concerned about fetal tests to detect serious conditions in the baby. They fear that such tests could endanger the baby’s health.

Practice makes perfect, they say, but keep on practicing even after perfection. Continued practice makes the body more efficient - so that the same tasks use less energy.

Since their peak in the 1990s , teen pregnancies in the United States declined to their lowest level in nearly 40 years, in 2008.

Occasionally, studies of medical data find unexpected trends. Recently, an analysis of anesthetic use during liver surgery found a surprising relationship for tumor recurrence.

Bisphosphonates are a tricky drug. While doctors say the benefits of these osteoporosis drugs are greater than the risk, mounting evidence shows that they can also cause certain fractures.