End-of-life care
Learning Center
Scalp psoriasis vs. seborrheic dermatitis: What's the difference?
Learn how to tell apart these common conditions of the scalp, both of which cause inflamed, scaly skin.
Vertebral tumor
Learn about these tumors that grow in the bones of the spine, causing pain and weakening the spinal column. Find out about diagnosis and treatment.
Bacterial vs. viral infections: How do they differ?
Understand the differences between bacterial and viral infections.
Pap smear
A Pap smear, also called a Pap test, is used for cervical cancer screening. Learn how it's done and what the results might mean.
Video: How cancer spreads
Watch this video to see how cancer spreads (metastasizes).
Cervical cysts: Can they be cancerous?
Cervical cysts usually aren't cancerous. Some types of cervical cysts are so common that they're considered a normal feature of cervical anatomy.
Allergies and asthma: They often occur together
Allergies and asthma? Find out how to control both conditions.
Concussion in children: What are the symptoms?
Whether your child's concussion is mild or severe, allow time to recover.
Premenstrual dysphoric disorder: Different from PMS?
Extreme moodiness, intense sadness or marked irritability in the days before your period — along with your usual PMS symptoms — could be PMDD.
How you hear
Your ears enable you to gather and interpret sounds from the world around you.
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