Intentionally adding water to a space is a good idea, as long as that water stays where it belongs—rogue water from a broken pipe is a psychologically debilitating stressor. Looking at water that’s gently moving is tremendously relaxing to us. That’s why there’s a fish tank in every dentist’s office. Research shows that we’re calmer when we look at a fish tank even when there aren’t fish in it—but fish tanks without fish get the neighbours talking. Research has shown…