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What causes blood in sputum?

Seeing blood in sputum or mucus can be worrying, but it is usually not a cause for concern. If a person is young or generally healthy, these traces of blood are often caused by a mild infection or bronchitis. In serious cases, they can indicate a severe infection or lung cancer. Learn about causes and treatments here.

Sat, 21 Apr 2018, 13:00

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Why are my legs and feet numb?

There are many reasons why a person may feel numbness or tingling in their legs or feet. The most common is sitting in the same position for too long, which reduces blood flow to the legs. Causes for chronic numbness include multiple sclerosis and fibromyalgia. Learn more about symptoms, causes, and treatments here.

Sat, 21 Apr 2018, 10:00

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Having an audience makes your brain perform better

New research examines what goes on in the brain when people perform a task in front of an audience versus when they are not being watched.

Sat, 21 Apr 2018, 10:00

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