When people are in love, their hearts actually beat for each other, or at least at the same rate, according to new research. Emilio Ferrer, a psychology professor at University of California, Davis, who has conducted a series of studies on couples in romantic relationships, finds that couples connected to monitors measuring heart rates and respiration get their heart rate in sync, and they breathe in and out at the same intervals.

When you think "infographic," you usually think "data." But one blog is taking a whole new approach to the infographic by creating infographics about love. The What Love Looks Like blog features groups of infographics around a particular theme. One, for instance, starts with a white circle labeled "me" and the words "I begin as a whole." "To love is to yield your shape," it goes on, the circle splitting in two. "If love is mutual, I will affect yours."