Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.
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Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.
Female cheetah and cubs in the Ngorongoro Conservation Area