Some churches have a ministry group with the. responsibility of creating hallway bulletin. boards and visuals that relate to the season of. the church year or to the subjects being stu-. died in Sunday school. It is important to pay attention to the physical. classroom environment.
Torii et al. (1988) examined the psychological effects of essential oils via brain waves patterns (CNV), with results suggesting that sandalwood was sedative. Sandalwood has been shown to have a sedative effect on the motility of mice upon inhalation (Buchbauer et al., 1993).
Tea tree oil should not be taken internally, even in small quantities. It can cause impaired immune function, diarrhea, and potentially fatal central nervous system depression (excessive drowsiness, sleepiness, confusion, coma). Tea tree oil, like any essential oil, can be absorbed through the skin.