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The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.
Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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.