Food tastes better if you work harder for it. That's according to a study conducted by Johns Hopkins University researchers, highlighted in an article in the Hartford Courant.
"That's the finding of a team of researchers at Johns Hopkins University
Their experiment focused on two groups of mice. One group had to push a
lever once to get a morsel of food. The other had to push the lever 15
times before getting their reward – a morsel of the same kind of food.The mice that worked harder ate more of the food and seemed to enjoy it more (based on their 'licking behavior')."
You can read the story here