If You're Having a Good First Date, Your Heart Beats May be Synced

Online dating is big business these days. There are approximately 324 million online daters around the world, according to an industry report, earning app developers an estimated $5.6 billion in revenue in 2021. A considerable portion of those looking for romance online — 42 percent — say they’re on the hunt for a spouse, but only 13 percent end up getting married to someone they meet online. In fact, research has already shown that judging a potential suitor based on written or visual stimuli (for example, an online profile) does not accurately predict attraction during a first encounter.