Education campaigns ... may not be enough, at least not alone. If people have no incentive to avoid AIDS on their own, even if they know everything about the disease, they still may not change their behavior.

Even if you are planning a birth with an epidural, the evidence suggests that a doula can help make things go much more smoothly.

One of the big take-aways from a lot of economic theory is that people should engage in consumption smoothing.

There is some risk to increase birth defects if you do a lot of outdoor gardening when you are pregnant. That can increase rates of toxoplasmosis.

In short, humans are programmed to get bored.

As people do a task, they improve at it.

For many women - myself included - pregnancy brings on tremendous anxiety and confusion, along with the joy.