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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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.