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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.
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Excessive alcohol use costs the country approximately $235 billion every year.

