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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.
Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.
The horizontal fraction bar was introduced by the Arabs.