<http://schema.org/alternativeHeadline>
"What exactly is happening when the sun\u2019s rays hit your skin? When melanin stops absorbing UV rays, your skin undergoes a toxic reaction."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/health/fitness-well-being/stories/the-science-behind-sunburns>