"Today everyone is focused on reducing nutrient inputs to the sea in order to reduce eutrophication (the effect of excessive nutrients) in the Baltic, but by helping nature itself to deal with the phosphorus that is discharged we can create a turbo effect in the battle against eutrophication, " said Anders Stigebrandt, of the University of Gothenburg's Department of Earth Sciences.
Concentration is improved when people's senses are aroused, says Dr Linnell, but if this becomes excessive it seems to have the opposite effect and reduces the ability to focus on a single task.