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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.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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.
On average, the stomach produces 2 L of hydrochloric acid per day.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.