Exercise a mood enhancer? (Chicago Sun-Times)

Exercise experts have known for years that moderate physical activity improves mood. Now a study shows that people are in a better mood for up to 12 hours after they work out. Researchers at the University of Vermont had 24 college students ride an exercise bike for 20 minutes at a moderate intensity. Another 24 people did no exercise during the same time period. Afterward, participants in …
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