After Running for Some Time, a Marathon Runner May "Hit

question 9

Multiple Choice

After running for some time, a marathon runner may "hit a stride" and be able to continue with little pain. The runner is experiencing the effects of which body chemical?

• A)serotonin
• B)dopamine
• C)silicon dioxide
• D)endorphins

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Definitions:

Income Inequality

The unequal distribution of income and wealth across the population, leading to social and economic disparities.

Health Disparities

The differences in health outcomes and their determinants between different segments of the population, often influenced by social, economic, and environmental factors.

Infant Mortality Rate

is the statistical measure of the number of deaths of infants under one year of age per 1,000 live births in a given year.

Live Births

The delivery of a baby who shows any sign of life, such as breathing, heartbeat, or voluntary muscle movements, after being expelled or extracted from its mother's body.