Skin care
Learning Center
Types of psoriasis
Learn to identify types of psoriasis, such as guttate psoriasis and scalp psoriasis, by appearance.
Types of dermatitis
Learn to identify types of dermatitis by how the skin looks. Examples include atopic dermatitis, contact dermatitis and seborrheic dermatitis.
Tweak your walking routine for muscle and bone health
With a few changes to your regular walking routine, you can keep muscle and bone loss at bay as you age.
Triglycerides: Why do they matter?
Like cholesterol, triglycerides can cause health problems. Here's how to lower your triglycerides.
Transurethral resection of the prostate (TURP)
Learn about this procedure used to treat urinary problems caused by an enlarged prostate gland.
Transgender facts
Know the basics about sex and gender, including common terms and definitions.
Tattoos: Understand risks and precautions
Allergic reactions, infections and skin problems can all happen after getting a tattoo. Take steps to stay safe.
Tanning beds: Safer than the sun?
Tanning beds don't offer a safe alternative to natural sunlight.
Swallowing gum: Is it harmful?
Your body can't digest chewing gum. So what happens when you swallow it?
Sunscreen: One dose doesn't do it
You can't put on sunscreen in the morning and expect to be protected for a full day in the sun. To maximize sun protection, apply generous amounts of sunscreen to dry skin 15 minutes before you go outdoors. Reapply sunscreen every two hours — or more often if you're swimming or sweating.
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