<http://schema.org/alternativeHeadline>
"Ticklish laughter activates the hypothalamus, a part of the brain involved in regulating many functions, including visceral reactions."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/health/fitness-well-being/stories/brain-area-for-ticklish-laughter-found>