Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
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Thyroid conditions may make getting pregnant impossible.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Effects of PYY on Activity of the Hypothalamus and OFC
Effects of Spinal Cord and Autonomic System Damage
Negative and positive feedback loops
Earth’s tilt and yearly rotation around the sun cause seasonal effects. The 23° tilt of Earth’s ...
Global air circulation patterns and their effects on climate.