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There are more bacteria in your mouth than there are people in the world.
Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.