Rosemary essential oil is often used for alertness and stimulating memory. Dap a little into a handkerchief or cotton ball and inhale as needed. It can also keep you alert during long car trips or a long day at work. You Might Also Like Coconut Oil has many health benefits May 1, 2014 Pearls August 28, 2013 Colors affect moods, emotions, physiological processes December 17, 2014