Watching fish in an aquarium really can make you feel better

The way fish swim and flit around an aquarium isn’t just interesting to watch — the very act of looking at such water scenes has proven benefits to human health, too.

fish in an aquarium

Aquariums deliver health and well-being benefits

People who spend time watching aquariums and fish tanks could see improvements in their physical and mental well-being, according to new research

In the first study of its kind, experts from the National Marine Aquarium, Plymouth University and England’s University of Exeter assessed people’s physical and mental responses to tanks containing varying levels of fish.

The team found that viewing aquarium displays led to noticeable reductions in blood pressure and heart rate, and that higher numbers of fish helped to hold people’s attention for longer and improve their moods.

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Monterey Bay AquariumWhile spending time in ‘natural’ environments has been shown to provide calming effects on humans, there has been very little research into the role that underwater settings could have on health and well-being. Deborah Cracknell, PhD Student and Lead Researcher at the National Marine Aquarium, conducted the study, published in the journal Environment & Behavior, and believes it provides an important first step in our understanding.

“Fish tanks and displays are often associated with attempts at calming patients in doctors’ surgeries and dental waiting rooms. This study has, for the first time, provided robust evidence that ‘doses’ of exposure to underwater settings could actually have a positive impact on people’s well-being.”

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The researchers benefited from a unique opportunity in order to conduct their study when the National Marine Aquarium refurbished one of its main exhibits — in a large 550,000 liter tank — and began a phased introduction of different fish species.

They were able to assess the mood, heart rate and blood pressure of study participants in precisely the same setting as fish numbers in the exhibit gradually increased.

“While large public aquariums typically focus on their educational mission, our study suggests they could offer a number of previously undiscovered benefits,” says Dr Sabine Pahl, Associate Professor in Psychology at Plymouth University. “In times of higher work stress and crowded urban living, perhaps aquariums can step in and provide an oasis of calm and relaxation.”

“Our findings have shown improvements for health and well-being in highly managed settings, providing an exciting possibility for people who aren’t able to access outdoor natural environments,” says Dr Mathew White, an environmental psychologist at the University of Exeter.

“If we can identify the mechanisms that underpin the benefits we’re seeing, we can effectively bring some of the ‘outside inside’ and improve the well-being of people without ready access to nature.”

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