Fish may be beneficial to your health. Not just eating them, but watching them.
Three University of Pennsylvania researchers report that quietly watching fish swimming in a home aquarium eases stress, and may offer a means of treating high blood pressure.
The fish are the key, the researchers say. People who watch fish tanks with bubbles, pebbles and plants – but no fish – don’t benefit nearly as much.
“There is a sharp difference,” says ecologist Alan Beck, director of the university’s Center for the Interaction of Animals and Society. “Blood pressure drops with fishless fish tanks, but it doesn’t drop as much and it creeps back up faster. With fish in the tanks, you truly get relaxation.”