The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.
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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.
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The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.
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Medication errors are three times higher among children and infants than with adults.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
How insulin works
Coefficients of relatedness: How kin selection works.
Tim McGraw - Humble And Kind (Official Video)
The Clean Development Mechanism allows developed countries