<blockquote>The one emotion that outpaced anger in Berger’s study was awe, the feelings of wonder and excitement that come from encountering great beauty or knowledge, such as a news report of an important discovery in the fight against cancer. “Awe gets our hearts racing and our blood pumping,” Berger says. “This increases our desire for emotional connection and drives us to share.”</blockquote>
via <a href="http://www.smithsonianmag.com/science-nature/what-emotion-goes-viral-fastest-180950182/">What Emotion Goes Viral the Fastest? | Science | Smithsonian</a>.