The Nose Knows: Smell as a Marker for Alzheimer's

Our sense of smell is vital to appreciating food and drink, it can warn us of danger, and enhance enjoyment of our environment, and yet it is one of our least explored sensory systems. In The Forgotten Sense, olfaction specialist Dr Jonas Olofsson explains the science behind our sense of smell.

Dr Ally Louks caused a stink on social media when she mentioned the subject of her PhD thesis, Olfactory Ethics: The Politics of Smell in Modern and Contemporary Prose. But she shows just how much readers can learn from paying attention to the aroma of a writer’s work.

While imagining the stench of a Dickensian city street can enhance a reader’s experience, what about actually smelling burning rubber as you play a video racing game? Professor Alan Chalmers explains the groundbreaking research currently ongoing to make gaming a more immersive experience, with smell at its centre.

Producer: Katy Hickman