Scientists have discovered true love. Brain scans have proved that a small number of couples can respond with as much passion after 20 years as most people exhibit only in the first flush of love.

The findings overturn the conventional view that love and sexual desire peak at the start of a relationship and then decline as the years pass.

I've personally always believed this to be true, because I have seen and felt for myself – Old couples with greying hair, holding hands, and looking at each other with that look.

So while I applaud the honesty of Steve Pavlina's new experiment, no, I do not agree with him about marriage being an useless institution. I feel there's something very special to actually desire to spend the rest of your life with only one person. That does not mean I do not agree with open relationships, I guess I would rather be in an open relationship than to have any shred of doubt about my relationship and commiting myself to anyone because society tells me to.