Alternative medicine
Learning Center
Fetal ultrasound
Look at ultrasound images and learn how to understand what you're seeing.
Sun damage
See photos of common skin conditions that are caused by too much time in the sun.
How you hear
Your ears enable you to gather and interpret sounds from the world around you.
Joint protection for people with hand arthritis
Joint protection — photos showing joint protection techniques to avoid hand arthritis pain.
Guide to different tick species and the diseases they carry
Learn about different tick species and some of the diseases they may carry.
Types of dermatitis
Learn to identify types of dermatitis by how the skin looks. Examples include atopic dermatitis, contact dermatitis and seborrheic dermatitis.
Which CPAP masks are best for you?
CPAP masks come in a variety of styles. See some of your options.
How your brain works
Which part of your brain does what? Take a tour.
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