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Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.
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The longest a person has survived after a heart transplant is 24 years.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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The familiar sounds of your heart are made by the heart's valves as they open and close.