If you wanted a bag of Doritos from one of Brad Appelhans’ experimental vending machines, you’d have to wait. The associate professor of preventative medicine at Rush University Medical Center designed a device that fits inside of vending machines and waits 25 seconds before releasing the typical processed snacks. But healthier fare – like peanuts or popcorn – drops instantly.
Think of it as a sort of “time tax.” The idea is that every second you spend waiting for a snack will make you want it less, similar to how a tax on sugary drinks might get you to buy less soda, Appelhans says. read more here