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Illicit drug use costs the United States approximately $181 billion every year.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
There are 60,000 miles of blood vessels in every adult human.
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.
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.