Nasty shopping cart tricks: How supermarkets manipulate their customers. echo24.de summarizes which nasty secret functions make the shopping cart a top seller.

Customers who push a shopping cart with a horizontal crossbar predominantly use the triceps - and, according to researchers, therefore adopt a rejection posture. However, the ergonomic handles prevent this - customers are quicker to reach into the shelf. Other practical secret functions on the shopping carts: Only a few customers know about them. The shape of the handles engages the muscles in a specific way that has a positive psychological effect on customers' shopping behavior.