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Dizziness

Dizziness

Dizziness facts Dizziness is a symptom that often applies to a variety of sensations including lightheadedness and vertigo. Vertigo is the sensation of spinning, while lightheadedness is typically described as near fainting, and weakness. Some of the conditions that may cause lightheadedness in a patient include low blood pressure, high blood pressure, dehydration, medications, postural […]

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Metoprolol vs. atenolol

Metoprolol vs. atenolol

Metoprolol vs. atenolol: What’s the difference? Metoprolol and atenolol are beta-blockers used to treat high blood pressure (hypertension), heart pain (angina), congestive heart failure, hyperthyroidism, abnormal heart rhythms, and some neurologic conditions. Metoprolol is also used to prevent migraine headaches. Brand names for metoprolol include Lopressor and Toprol XL. A brand name for atenolol is […]

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How do cancer-causing bacteria take over our stomachs?

How do cancer-causing bacteria take over our stomachs?

A new study in mice uses cutting-edge imaging techniques to investigate how H. pylori, which are present in around half of the humans on earth, survive and thrive in the stomach. How do H. pylori (pictured above) colonize humans so successfully? Gut bacteria are one of the hottest topics in medical science today. As scientists […]

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What causes black mucus?

What causes black mucus?

When a person has black mucus, they may have inhaled potentially harmful pollutants. Or, they could have an underlying infection or condition. Mucus serves an important purpose in the nasal passages and other cavities throughout the body. It helps protect against infection and harm from foreign objects. Mucus also helps lubricate these passages and cavities. […]