I know what you're thinking, "What in the name of God is synesthesia??". 

Synesthesia is a condition in which one sense (for example, hearing) is simultaneously perceived as if  by one or more additional senses such as sight. Another form of synesthesia joins objects such as letters, shapes, numbers or people's names with a sensory perception such as smell, colour or flavour.

On this morning's Dermot and Dave, we were very intrigued and honoured to welcome journalist Aisling Keenan into studio to tell us her very colourful life story.

Aisling's strain of perceptual phenomenon means that she sees people in the form of colour, days, numbers and letters, which is known as their "set", and it's scientifically proven (for anyone of the sceptical nature).

Although it may sound like a superpower, Aisling revealed how it can have a negative effect on certain parts of daily life. For example, when she comes up against a 'bad set' it can be very off-putting.

It's definitely one of the most fascinating stories we've ever heard, so incredible in fact that her article on image.ie went viral with 1,800 people wanting to know their set.

The writer also shocked us with the fact that she sees none of these in herself, "literally I elicit nothing", and opened up about the fear of her children being of a "bad set".

You can listen to the fun in full by pressing the play button in the image at the top of the screen.