Another type of stimulant is known as tonic herbs are on the uprising. Tonic herbs such as ginseng and Siberian eleuthero do not contain central nervous system stimulants as potent as caffeine and ephedrine. These old school herbs work in the body to increase energy, prevent fatigue, improve mood, and possible even enhance libido. Mood brighteners are substances that elevate the spirits, rid depression, reduce anxiety, and increase feelings of cheer and optimism. Mood brighteners tend to be less potent and less toxic than anti-depressants. Substances such as St. John’s wort and three essential oils (Rose, Jasmine, and Neroli) rarely cause euphoria but frequently rid mild depression and enhance an overall sense of well being.
Brain boosters are becoming more and more popular in the natural remedy aisle. Brain boosters are taken to enhance brain function, prevent age related declines in mental performance, increase short and long term memory, promote learning, and heighten creativity and motivation. Some common side effects of natural brain boosters are the ability to protect the brain from radical damage, increase blood flow in brain, and lastly, boosting the activity of some neurotransmitters (dopamine, noradrenalin, and acetylcholine).