Fitness basics
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Xylazine
Xylazine is a medicine used to sedate animals. Learn about possible risk of death in humans who take it.
Delusional parasitosis
Learn more about this condition and positive steps you can take to manage the symptoms.
Young-onset Alzheimer's: When symptoms begin before age 65
Young-onset Alzheimer's disease is a rare form of dementia that presents unique challenges. Learn more about causes, diagnosis and how to cope.
Placenta: How it works, what's normal
Understand how this pregnancy organ works and what conditions can affect it.
Types of psoriasis
Learn to identify types of psoriasis, such as guttate psoriasis and scalp psoriasis, by appearance.
How you hear
Your ears enable you to gather and interpret sounds from the world around you.
Types of dermatitis
Learn to identify types of dermatitis by how the skin looks. Examples include atopic dermatitis, contact dermatitis and seborrheic dermatitis.
Iron deficiency in children: Prevention tips for parents
Learn how much of this key mineral your child needs and what the health risks of not getting enough are.
Signs of labor: Know what to expect
Know exactly what to expect as your due date approaches and your body prepares for delivery.
How your brain works
Which part of your brain does what? Take a tour.
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