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Busy careers, demanding academic schedules and rigorous athletic endeavors can drain your emotional reserves. These commitments require a high level of dedication, energy and focus that make it difficult to enjoy the journey. L-theanine supplements are a safe and natural way to improve your mood and sense of well-being when the mental and physical challenges are overwhelming. First discovered in 1949, this amino acid is a naturally occurring element in green tea and an important ingredient in Focus Boost, a holistic combination of premium nutrients.

Clinical Evidence for L-Theanine Supplements

A double-blind study published in the October 2004 issue of Human Pharmacology compared L-theanine and Xanax, a controlled substance prescribed to treat panic and anxiety disorders. To prevent bias, the study was designed so that neither the participants nor the researchers knew when L-theanine, Xanax or a placebo was being administered. The amino acid demonstrated a stronger ability to create a relaxed state than the prescription medication.

A 2010 study conducted by Nutritional Neuroscience indicates that the amino acid also counteracts the negative side effects of caffeine while enhancing cognitive performance. A combination of L-theanine and caffeine was shown to improve accuracy and alertness. L-theanine supports the immune system and lowers blood pressure as well.

Research also demonstrates that L-theanine has a positive effect on cognition. An electrophysiological study published in the January 2007 issue of Clinical Neuropharmacology confirmed that L-theanine enhanced focus during demanding intellectual tasks by increasing alpha waves. These changes occurred in the parietal and occipital lobes, which are responsible for working memory, numerical calculation and other cognitive functions.

How L-Theanine Supplements Work

The nutrient increases the levels of neurotransmitters, such as dopamine, serotonin and gamma-aminobutyric acid, or GABA, within the brain. L-theanine boosts the levels of dopamine, which plays a major role in high-level cognitive functions, such as memory, motivation and mood. Low levels of this nervous system stimulant make it difficult to focus. Serotonin is the neurotransmitter that controls mental states, such as anger, anxiety, depression and happiness. Higher levels of serotonin help you ward off depression and anxiety that interfere with memory, learning and focus.

GABA is a naturally occurring brain chemical that creates a calming effect, which relieves anxiety and the jittery feeling typically associated with caffeine. L-theanine also lowers norepinephrine, a brain chemical that your body produces when it enters a state of “fight-or-flight.