Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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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.
Blood Vessels
Blood Flow
Changes in the free energy (DG) of exergonic and endergonic reactions
Risk of Stroke and Heart Disease Increase with Increasing Blood Pressure
Preload is related to the amount of blood and stretching of the ventricular myocardial fibers