This section contains a wide range of educational articles, calculators, quizzes and risk assessments. To find a specific topic quickly and easily, use the search function at the top of the page. Just type in the name of the topic you are interested in and explore the results.

Adjustment Disorders in Children

An adjustment disorder is an unhealthy emotional or behavioral reaction to a stressful event or change in a person’s life. The response happens within 3 months of the stressful event.

Adult BMI Calculator


Alcohol and Pregnancy

Alcohol consumption by the mother is a leading cause of preventable birth defects in the fetus. In addition, the risk for miscarriage and stillbirth increases with alcohol consumption.

Alpha-fetoprotein (AFP)

Alpha-fetoprotein screening is a blood test that measures the level of AFP in the mothers’ blood. Abnormal levels may indicate certain problems with the fetus.


Amenorrhea means you haven’t had your period for more than 3 cycles. It can be caused by a variety of things including overexercising, being overweight, or due to an ovulation problem.

Amenorrhea in Teens

Amenorrhea is a menstrual condition in which a woman’s menstrual periods are absent for more than three monthly cycles. Pregnancy is one possible cause of amenorrhea.