Village Landais is an experiment to see if removing stress from those with Alzheimer’s can help slow the progression of the disease. When you spend a couple of days here, you realise all is not what it seems. At first glance the supermarket looks like any other; then you notice they have no checkouts. Remembering to pay for goods can be a challenge for those with dementia. And so here, that pressure is removed. In the village library, there is a wooden carriage. It is known as the "train to anywhere." Psychologist Nathalie Bonnet holds sessions with residents in the train - there’s a film of a rural journey that plays on a loop. "It’s about feeling the freedom," she explains.