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Learning Center
Ovulation signs: When is conception most likely?
Trying to get pregnant? Learn about ovulation signs and symptoms.
Oral health: A window to your overall health
Find out about the connection between your oral health and overall health.
Ocular migraine: When to seek help
Flashes of light, zigzagging patterns and temporary blindness — what does it all mean?
Nail ridges: Cause for concern?
Vertical nail ridges are common and often become more prominent with age.
Mumps
Find out more about the symptoms and treatment of this viral illness and how vaccines can prevent it.
Monkeypox: What is it and how can it be prevented?
Find out more about the rare mpox, or monkeypox, viral infection, the possible symptoms in humans, treatment options and how to prevent getting or spreading the virus.
Moldy cheese: Is it OK to eat?
Moldy cheese may be unappetizing, but is it unsafe?
Mold on your cheddar? Don't despair
If you spot mold on a wedge of hard cheese, such as cheddar or Parmesan, you may be able to salvage the cheese. Cut away the moldy part and at least 1 inch (2.5 centimeter) of the surrounding cheese, keeping the knife out of the mold. Moldy shredded or crumbled cheese can't be saved, however, and should be discarded.
Mental health: What's normal, what's not
Normal mental health vs. mental illness — Find out how mental disorders are defined and diagnosed.
Medical credentials and degrees explained
Confused by the credentials for doctors, nurses and physician assistants? Get definitions of common credentials and learn why they matter.
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