Fitness basics
Learning Center
Birth control: Can preejaculation fluid cause pregnancy?
This possible cause of pregnancy makes withdrawal a method of birth control you cannot rely on.
Birth control pills: Harmful in early pregnancy?
If you took birth control pills before you knew you were pregnant, the risks of birth defects are low.
Bipolar treatment: Are bipolar I and bipolar II treated differently?
Bipolar I and bipolar II are different disorders, but treatment is similar.
Bipolar medications and weight gain
Some medications used to treat bipolar disorder can increase your appetite or cause changes in metabolism leading to weight gain.
Bipolar disorder and alcoholism: Are they related?
These disorders often occur together, and they can be a dangerous mix. Having both conditions makes mood swings, depression, violence and suicide more likely.
Bioidentical hormones: Are they safer?
There's no evidence that bioidentical hormones are safer than standard hormone therapy for menopause.
Beta blockers: How do they affect exercise?
If you take this medicine, you may need to change your target heart rate during exercise.
Beta blockers: Do they cause weight gain?
Weight gain can occur as a side effect of some of these medicines used for high blood pressure and other conditions.
Bacterial vs. viral infections: How do they differ?
Understand the differences between bacterial and viral infections.
Avulsion fracture: How is it treated?
Surgery is rarely needed to reattach a small chunk of bone when it gets pulled away from the main part of the bone by a tendon or ligament.
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