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Learning Center
Tetanus shots: Is it risky to receive 'extra' boosters?
For adults, tetanus shots are recommended every 10 years.
Calcium supplements: When should they be taken?
Timing matters when taking these supplements. Learn how to take them.
Can vitamins help prevent a heart attack?
Study results are mixed on whether vitamins can prevent heart disease. Find out more.
What is BPA? Should I be worried about it?
Find out more about BPA, a chemical used in some plastics and resins, and explore options for reducing your exposure.
Fasting diet: Can it improve my heart health?
Periodically following a fasting diet may have heart-health benefits. Find out more.
Sea salt vs. table salt: What's the difference?
Should you take health claims about sea salt with a grain of salt? What makes it different from table salt?
What are superbugs and how can I protect myself from infection?
Some bacteria and other germs are resistant to most types of antibiotics and medications 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.
Flu vaccine: Safe for people with egg allergy?
If you have egg allergy, you still may be able to receive the flu vaccine.
Flu mask: Should I wear one?
Influenza masks and hand hygiene might help protect healthcare workers from flu (influenza).
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