A Gel first: a presenter who explores the sense of smell. The olfactory sense opens up a "unique personal world," Nicola Twilley explains, as research shows that people have wildly different sensitivities to scent.

Nicola also reveals which scents have been found to be most attractive to each gender. Set aside your ocular centricity and enjoy!

Nicola's blog: ediblegeography.com

More Gel videos: gelvideos.com