The rate of physical activity has decreased in the United States during the last 50 years.
Physical activity helps prevent chronic illness, which reduces the need for medical treatment.
American's who are less active tend to stay that way for a variety of reasons. Lack of time or motivation, lack of access to fitness facilities, having too many family obligations, and satisfaction with existing levels of activity are a few of the excuses.
An ailment or illness that often lasts for three months or longer and has the potential to develop worse over time.
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