This is the finding of a study by post-graduate student Lauren Bussey, Lucy Moss and Dr Mark Moss of Northumbria University who will present their research today, Wednesday 27 April 2016, at the British Psychological Society's Annual Conference in Nottingham.
Lauren Bussey said: "In this study we focused on prospective memory. This involves the ability to remember events that will occur in the future and to remember to complete tasks at particular times. It's critical for everyday functioning. For example: when someone needs to remember to post a letter or to take medication at a particular time."
Rosemary and lavender essential oil were diffused in a testing room by placing four drops on an aroma stream fan diffuser and switching this on five minutes before the participants entered the room. A total of 150 people aged over 65 took part in the study and were randomly allocated to either the rosemary/lavender-scented room or another room with no scent.