Alternative medicine
Learning Center
Heart rate: What's normal?
A normal resting heart rate for adults ranges from 60 to 100 beats per minute. A heart rate above or below that may signal a problem.
Colloidal silver supplements: Are they safe?
Colloidal silver supplements are often promoted as cure-alls, but evidence of effectiveness is lacking. Side effects range from change in skin color to organ damage.
Ocular migraine: When to seek help
Flashes of light, zigzagging patterns and temporary blindness — what does it all mean?
Kombucha tea: Does it have health benefits?
Does kombucha tea live up to its reputation as a health tonic?
Candida cleanse diet: What does it treat?
Candida cleanse diets that replace processed food with fresh foods improve health but don't necessarily stop yeast overgrowth.
Macrocytosis: What causes it?
Enlarged red blood cells (macrocytosis) can be due to many factors.
Priapism
Understand the symptoms, possible causes and treatment of prolonged erection of the penis, including when to seek emergency care.
Stress fractures
Stress fractures are tiny cracks in bones often caused by overuse or osteoporosis. Learn how to prevent and treat them.
VLDL cholesterol: Is it harmful?
Like LDL cholesterol, very-low-density lipoprotein (VLDL) cholesterol is considered a type of 'bad' cholesterol.
What's the difference between H1N1 flu and influenza A?
H1N1 flu is a subcategory of influenza A.
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