Did you know?
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.
Did you know?
There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.
A permanent epicardial pacemaker. The pulse generator can be placed in subcutaneous pockets in the s
The Movius line separates regions of the world where Acheulean hand axes were made from regions wher
Bronfenbrenner’s model of the ecological-systems approach to studying development. He suggested that
Martin Van Buren, sitting uncomfortably for this engraving, would eventually ascend to the presidenc
Cranial nerves and their target regions. (Sensory nerves are shown in blue; motor nerves, in red.)
Frontal section through the right side of the skull showing the three principal regions of the ear