<http://schema.org/alternativeHeadline>
"Walking just 40 minutes a day could seriously benefit your health. Check out these amazing perks to taking a simple stroll around the neighborhood."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/health/fitness-well-being/stories/8-astonishing-benefits-of-walking?page=1>