Skin care
Learning Center
Sunscreen shopping tips
When you're shopping for sunscreen brand matters less than how you use the product. Look for water-resistant, broad-spectrum coverage with an SPF of at least 30. Check the sunscreen's expiration date. Also, find a sunscreen you like. If you don't care for the sunscreen, you're not as likely to use it consistently.
Sunless tanning: What you need to know
Sunless tanning products can provide a safe, natural-looking tan — if they're applied carefully and correctly.
Sunless tanning tips
Want to avoid orange palms, knees and elbows when you're using sunless tanning products? Before applying a sunless tanning product use a washcloth to exfoliate, especially in areas with thick skin such as your knees and elbows. This will help remove excess dead skin cells. Apply the tanner to your body in sections. Wash your hands with soap after each section to avoid discoloring your palms. Knees, elbows and ankles tend to absorb more of sunless tanning products. To dilute the tanning effect in these areas, gently rub them with a damp towel.
Sulfa allergy: Which medications should I avoid?
Sulfa allergy: A Mayo Clinic expert discusses which medications are likely to cause problems.
Stress fractures
Stress fractures are tiny cracks in bones often caused by overuse or osteoporosis. Learn how to prevent and treat them.
Stool color: When to worry
Stool color is usually a result of diet and is only rarely a concern.
Sleep deprivation: A cause of high blood pressure?
Too little sleep affects not only energy levels but also heart health.
Skin care: 5 tips for healthy skin
Skin care gimmicks abound — but don't fall for the hype. Get healthy looking skin with these simple tips.
Sinus infection and toothache: Any connection?
Sometimes the cause of a toothache isn't a tooth problem, but a sinus problem.
Shaving hair: Does shaved hair grow back thicker?
Contrary to popular belief, shaving unwanted hair doesn't make it grow back thicker.
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