teen pregnancy

Teenage pregnancy rates have declined across the country, but some parts of Texas have made much less progress on that. Abstinence-only sex ed policies may be one reason why.

Making contraceptives available over the counter is safe, a review of research finds, and could lead to fewer unplanned pregnancies in both teens and adult women.

Psychologists have long known that children often model their behavior on the actions of parents or peers. But science has only recently begun to measure the influence of siblings. An older brother's or sister's behavior can be very contagious, it turns out — for good and for bad.