Being physically active year round is a positive way to improve health and protect against heart disease, diabetes, obesity and osteoporosis. Physical activity also increases a person's sense of well-being.

Exercising outdoors in warm weather can be refreshing, especially after spending months inside during a long and frigid winter. In the summer months, when it is hot, hazy, and humid, it is important to understand how to safely and effectively exercise in the heat and smog.
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