Harvest Moon L-Theanine is from SunTheanine a 100% pure patented source of L-Theanine manufactured in Japan by Taiyo International, the premiere manufacturer of L-Theanine.Promoting relaxation without causing drowsiness
First introduced centuries ago in Southeast Asia, tea has become the most widely consumed beverage worldwide aside from water and it is now cultivated in more than 30 different countries. Extensive research has been conducted on tea, specifically green tea, for its many medicinal properties.
It has been estimated that nearly 65 percent of the adult population has experienced some form of stress or anxiety, and these numbers are on a continual rise due to the busy lifestyles we have adopted. Confronted daily with the stresses of our lives, our jobs, our families, etc., we continue to search for ways to relax and reduce our stress levels. In 1998, pharmaceutical sales of anti-depressants totaled $4.79 billion dollars while sales of anxiety drugs totaled $722 million.
Recently, much attention has been focused on L-Theanine, a unique amino acid commonly found in green tea. It has been determined that L-Theanine is a derivative of Glutamic Acid which is one of the neurotransmitters found in the brain.
Absorbed in the intestinal brush-border membrane, L-Theanine, due to its fat solubility, is incorporated into the brain via the leucine-preferring transport system of the blood brain barrier. Once absorbed into the brain, L-Theanine exhibits many positive, physiological effects.
In an experiment conducted by Hihehiko Yokogoshi, PhD and Takehiko Terashima, PhD at the Laboratory of Nutritional Biochemistry in Shizuoka, Japan, it was determined that dopamine concentrations in the brain, especially in the striatum, hypothalamus, and hippocampus increased significantly after the administration of L-Theanine. Dopamine, one of the brain?s neurotransmitters, is said to affect human emotion. L-Theanine also increases GABA levels in the brain which leads to a feeling of well-being.
The brain transmits four different categories of brain waves which are determined by frequency: Gamma (g), Theta (q), Alpha (a), and Beta (b). Gamma waves are present during sound sleep and Theta waves indicate dozing or sleeping. While Beta waves are present during an awake, excited state, Alpha waves signify an awake, relaxed state. Because L-Theanine promotes Alpha wave generation in the brain, an awake, alert and relaxed physical and mental condition is achieved which demonstrates Theanine?'s effectiveness in stress management.
L-Theanine does not cause drowsiness or impair a person?s motor skills. Effects of L-Theanine are experienced within 30 minutes of consumption and no drug interactions are known.
L-Theanine has been shown to work antagonistically against the negative side effects of caffeine. After injecting mice with Theanine intraperitoneally or subcutaneously, Kimura and Murata reported that Theanine effectively decreased convulsions induced by high doses of caffeine and the spontaneous motor activity produced by lower caffeine doses. L-Theanine has also been found effective in reducing the hypertension and disturbance of sleep often associated with the use of caffeine.
It is conceived that a large percentage of deaths are caused by atherosclerosis, a cardiovascular disorder characterized by a thickening of the arteries. Recent studies suggest that the oxidation of low-density lipoprotein (LDL) may be responsible for causing atherosclerosis. It has been reported that Theanine may reduce plasma total cholesterol, cholesterol ester and very-low-density lipoprotein cholesterol.
It has also been known that blood pressure is regulated by catecholaminergic and serotonergic neurons in the brain and the peripheral nervous system. Spontaneously hypertensive rats experienced a significant reduction in blood pressure after being administered high doses of Theanine.
Perhaps one of the most extensively researched and documented nutritional ingredients, Theanine has demonstrated safety and efficacy in many applications such as:
Improving learning and concentration
Heightening mental acuity
Supporting the Immune System
Reducing stress and anxiety
Reducing the negative side effects of caffeine
Above information was written by Julie Thibeau - Nutriscience Innovation, LLC