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The familiar sounds of your heart are made by the heart's valves as they open and close.
Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.
Excessive alcohol use costs the country approximately $235 billion every year.
Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.