The science behind online dating profiles

Around the world, 91 million people are on dating websites and apps. Finding "the one" among them may seem daunting - but some tips based on scientific research might help, writes Dr Xand van Tulleken. I'm 37, and for years I've been dating in London and New York, looking for Miss Right. Some people enjoy being single but, perhaps because I'm an identical twin, for me it's purgatory. Nonetheless I found myself single having - wrongly I suspect - prioritised work and travel for too long.