“…One of the most popular aromatherapy oils today is a lavender essential oil containing linalool, which can be used through inhalation or massage on the skin. Previous research results showed the positive effects of lavender oil used in aromatherapy, among others: helps relax tense nerves and muscles (Sayorwan et al, 2012), improves sleep quality (Cho et al, 2013;Karadag et al, 2017), lowering heart rate and body temperature (Jalalodini et al, 2016;Salamati et al, 2017;Sayorwan et al, 2012), lowering blood pressure (Jalalodini et al, 2016;N et al, 2016;Salamati et al, 2017;Sayorwan et al, 2012), reducing anxiety (Cho et al, 2013;Donelli et al, 2019;Karadag et al, 2017;Karan, 2019). Sayorwan et al (2012) found that lavender aromatherapy can increase alpha brain waves (8-13 Hz) associated with decreased stress and theta waves (4-8Hz), thereby improving sleep quality.…”