I sometimes call it the behavior plan 'cheat sheet' or cliff notes.Simply, empty text boxes are placed beside each number (5 point scale of course) on the curve for the author to describe the most important details of each 'level' of anxiety.

Anyone with an online dating account will know that choosing the perfect profile picture for your page is a tricky business.

From candid photos to Snapchat selfies, it can be difficult to know what will help you bag the likes in a sea of profiles.

This allowed them to see which tags were associated with photos with lots of likes.

Images featuring sports were shown to increase the chance of a like by 75 per cent, which those featuring nights out increased likes by 74 per cent.

Your body betrays you in a flush of self-conscious discomfort.

Your palms get sweaty, your heart races, your voice starts to quiver.

In total, nearly half of all of those surveyed, ages 18 to 49 — and 53% of millennials — thought marriage vows should be renewed, and nearly 40% said they believed the “till death do us part” vow should be abolished. Unions you can test and deglitch, work out kinks or simply abandon course without consequence.

“This is a generation that is used to this idea that everything is in beta, that life is a work in progress, so the idea of a beta marriage makes sense,” the study’s author, Melissa Lavigne-Delville, tells me.

“It's not that they're entirely noncommittal, it's just that they're nimble and open to change.”It’s not a new concept, entirely.

In the 1970s, the anthropologist Margaret Mead predicted the growing popularity of "serial monogamy," involving a string of monogamous marriages.

The anxiety curve model has been used by Kari and Mitzi for almost a decade to visually illustrate the power of anxiety and its influence on student behavior.