Aquariums are known to have a calming effect on people, which is important in an emergency waiting room of a hospital, where people may be in crisis."We actually have compelling scientific evidence that a 'natural environment,' whether it is a view of a garden or, in this case, a beautiful underwater scene, actually helps patients stay calm as they deal with the stress of being in a hospital. Fish aquariums have proven relaxation effects on people who are in stressful waiting situations, whereas televisions have been proven to have the opposite effect. The aquarium is a perfect solution.