It’s sad to say it, but statistically speaking, you’re never as happy in your marriage as when you were newly wed.

Researchers call this the “downward trajectory in marriage satisfaction”, and while it may not be true for your relationship, most people have certainly experienced some sort of decline in their loved-up levels post-Honeymoon phase.

Fortunately, there’s a solution – and it’s crazy quick and easy.

Here, I’ll let Dr Eli Finkel, the Director of Social Psychology at Chicago’s North Western University explain:

If you don’t have time to watch the video (it’s worth it though, we swear), here are the crib notes:

Now the only problem with this is, it might be a bit tricky to explain to your partner that you’d like to take 21 minutes out once a year to do a journalling exercise about your last big fight. But once they stop laughing at you, give it a go.

Not only were the people who tried the marriage hack happier in their relationships, they were also less stressed, less depressed and more satisfied with their lives in general. Sounds like it’s worth the time.

How long have you and your partner been together? How do you keep your marriage strong? What do you think the key is to a long and happy relationship?