Nutritional supplements
Learning Center
Yeast infection during pregnancy: Over-the-counter treatment OK?
Yeast infections are common during pregnancy. Over-the-counter treatments are usually safe.
X-ray during pregnancy: Is it safe?
Learn when an X-ray during pregnancy might cause harm and how to avoid it.
Why isn't there a hepatitis C vaccine?
Hepatitis C vaccine development is far from straightforward, but experimental vaccines are under study.
When to brush your teeth
When should you brush your teeth? Learn how to protect your oral health.
What are superbugs and how can I protect myself from infection?
Some bacteria and other germs are resistant to most types of antibiotics and medicines that treat them. Find out the risks and how to prevent infections.
What are opioids and why are they dangerous?
Opioids are a broad group of medicines used to relieve pain. Although these medicines are effective, they can lead to addiction. Take them only as directed.
Warm-mist versus cool-mist humidifier: Which is better for a cold?
Warm-mist and cool-mist humidifiers are equally effective in humidifying the air.
Vitamin D toxicity: What if you get too much?
Understand the risks of too much vitamin D, including a toxic reaction.
Vitamin D deficiency
What are the risks of too little vitamin D?
Viagra for women: Does it exist?
Learn about medicines to treat problems with sexual arousal or sexual desire in women.
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