42: The Answer to Almost Everything — Season 1, Episode 57: Why do We Fall in Love?

Episode synopsis

When we're really in love, all hell breaks loose. The heart races, palms sweat, the mouth goes dry and the brain switches to "happily insane" mode. Some cultures are convinced that that's not a solid foundation to build a marriage and family on, opting for arranged partnerships instead. But romantic love evolved for a reason. If we loved each other in small groups, then males would know who they were related to, and would fight for them and their children.

About 42: The Answer to Almost Everything

What would we be without mucus? Can we live on water? How much does life weigh? Finding out the answers is the aim of ARTE's new science show. In a nod to Douglas Adams's "Hitchhiker's Guide to the Galaxy", where the figure 42 is the ultimate answer to all questions, 42 tries to provide the answers.

More episodes from Season 1

• E1Can we dig our way through the Earth?
• E2Could We Live on the Moon?
• E3Should we use lotteries instead of elections?
• E4How Much Does Life Weigh?
• E5Will we move onto the water?
• E6Can Algorithms Make Us Healthy?
• E7What if there were no mucus?
• E8How do we solve the nuclear waste puzzle?
• E9What if Fear Didn't Exist?
• E10What if the ice disappeared?
• E11Do We All hear the Same Thing?
• E12Are we too pessimistic?