2. CNN - Exercise during pregnancy: Should you or shouldn't you? - May 18, 1999
If you're already an avid exerciser, you can probably continue doing the exercises you normally do. Only low-impact and low-intensity aerobic exercise is recommended, such as walking, swimming, stationary cycling and low-impact exercise classes.
http://www.cnn.com/HEALTH/women/9905/18/pregnancy.exercise/index.html

3. Another Look at Exercise and Heart Health --- HealthandAge -- Medical Articles - Health Topics, R...
According to the American College of Sports Medicine and the American Diabetes Association a general exercise plan should include the following: To address the question of how exercise might benefit heart health in this way, researchers did an...
http://www.healthandage.com/public/health-center/9/article/2033/Another-Look-at...

4. Exercise & Allergies
Those who are at risk for an allergic reaction during exercise should take the following precautions: Preventing allergic reactions during exercise. The best way to prevent an allergic reaction during exercise is to identify the allergen...
http://yourtotalhealth.ivillage.com/exercise-allergies.html?pageNum=8