Effects
One advantage of aromatherapy is that it works quickly, mainly because a person's sense of smell is wired directly to the brain. However, certain scents work to enhance concentration in different ways. Essential oils like peppermint and eucalyptus help to temporarily lift the brain fog often associated with extreme fatigue and lethargy. Pine is another scent that increases energy and concentration, while rosemary promotes relaxation, which can make your mind more alert.