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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
The average adult has about 21 square feet of skin.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.