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Widespread adoption of autonomous driving tech could reduce roadway deaths by at least 90 percent — saving some one million lives a year globally — making it one of the great public health achievements in human history.Now factor in enhanced mobility for the disabled and elderly, shorter commute times, and an end to all those wasted hours staring at the brake lights right in front of you.

Even if we put the question of individual freedom to one side (and we should not), if driverless cars turn out to be as good as some predict they ought not to need compulsion to back them up.

State and school district-level policies mandating minimum requirements for in-school physical education and recess time are associated with increased odds of schools in those states and districts meeting physical activity recommendations for students, according to a new study.

State and school district-level policies mandating minimum requirements for in-school physical education and recess time are associated with increased odds of schools in those states and districts meeting physical activity recommendations for students, according to a report published Online First by "Children spend the majority of their waking hours in school, thus schools are important locations to focus obesity prevention activities, such as increasing physical activity opportunities," the authors write as background information in the article.

The authors found that approximately 70 percent of schools included in the analysis offered at least 20 minutes of daily recess, and 17.9 percent offered 150 minutes/week of physical education.

The majority of states (83 percent) offered no daily recess law and less than half offered some kind of law addressing the recommended 150 minutes/week of physical education.

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