L-theanine to Buy Nootropics UK by Earthly Biotics for earth grown ingredients

L-Theanine

r-glutamylethylamide

Also known as ‘r-glutamylethylamide’, L-Theanine is a non-dietary amino acid found in green tea (camellia sinensis), and the mushroom Xerocomus badius. In terms of structure, L-Theanine is similar to the neurotransmitters l-glutamate and l-glutamine. L-Theanine can be taken as a supplement or drunk as green tea and crosses the blood-brain barrier with ease, reaching the brain within 30-45 minutes. The benefits of L-Theanine are myriad, and can increase cognitive ability, rejuvenate and relax you, heighten focus and alter your mood, & reduce your blood pressure. Ultimately, L-Theanine re-balances the chemistry of the brain and improves cognitive health.

 

History

L-Theanine was first isolated from green tea in Japan by Sakato in 1949. Highly effective at crossing the blood-brain barrier, it is an analogue of glutamate and glutamine, which is then hydrolyzed in your intestine and liver into l-glutamate and ethylamine. Since isolation in 1949, it has become widely popular amongst those who wish to improve their cognitive health and mental well-being. 

L-Theanine Structure for Cognitive Supplements from Earthly Biotics

 

Benefits

The main areas of health improvements noted as a result of taking L-Theanine can be summarized as:

  • Increasing Alpha-brain Waves

  • Boosting Neurotransmitters

  • Improving Theta-brain Waves

  • Reducing The Impact of Stress

  • Lowering The Incidence of Stroke

  • Improving Quality of Sleep

 

Increasing Alpha-brain Waves

A key benefit of L-Theanine is its proven ability to increase alpha brain waves, which are associated with mental relaxation and concentration. Providing an alert calmness, L-Theanine helps in promoting super-learning, flow states and joy. [source:1]

Alpha Brainwaves operate at 7.5-12.5hz, arising from synchronous & coherent electrical activity within the brain. Studies show that they can enhance a composed focus with intuitive creativity by reducing distraction & irrelevant impulse.

Source : 3

Source : 3

Brown Universities neuroscientists were researching how the brain achieves "optimal inattention" by altering the synchronization of brain wave patterns in different brain regions. The February 2015 study titled, “Attention Drives Synchronization of Alpha and Beta Rhythms between Right Inferior Frontal and Primary Sensory Neocortex,” was published in the Journal of Neuroscience. It summarised the results citing,
"These results are the first to reveal distinct interactions between primary sensory cortex and rIFC in humans and suggest that synchrony between rIFC and primary sensory representations plays a role in the inhibition of irrelevant sensory stimuli and motor responses.” [source:2]

In a further study, conducted in South Korea they compared a young test group against a control group. 20 healthy male volunteers, aged between 18 and 30 years, were either given L-Theanine tablets or a placebo daily for 7 days. Those taking the L-Theanine showed an increase in alpha brain waves [source:3]. 

Source : 4

Source : 4

A study conducted in 2008 showed the at even at differing values, L-Theanine produced significant alpha brain wave oscillations in people. The study reviewed that at multiple inputs of L-Theanine, the person benefits from alertness, focused attention, and accuracy. Going further they understood that it is likely to reflect higher level cognitive activity. [source:4] 

 

Boosting Neurotransmitters

Research indicates that L-Theanine has a double benefit of both increasing stress-reducing neurotransmitters [source:5], whilst also decreasing neurotransmitters associated with stress, tension and agitation. [source:6]

Specifically, L-Theanine boosts levels of serotonin, dopamine and GABA, as well as increasing Brain-Derived Neurotrophic Factor (BDNF) and Nerve Growth Factor (NGF) [source:7]. What does this all mean? Put simply, L-Theanine puts you in a better mood [source:8].

Japanese researchers worked with 12 people who underwent 4 separate trials. The study compared a group which took L-Theanine from the start of the experiment, another which took it from half-way through, and two control groups in which they took either a placebo or nothing. The study found that L-Theanine reduces heart rate and decreases stress levels. [source:9]

 

L-Theanine Smart Drugs in Global Focus Nootropic from Earthly Biotics

Improving Theta-brain Waves  

A recent NCBI study investigated the effect of L-Theanine on memory and attention. The double-blind, placebo-controlled study looked at 91 subjects with mild cognitive impairment and compared one group which received a daily dose of L-Theanine for 16 weeks with a control group which received a placebo.

The study found that L-Theanine increased cognitive alertness, creativity and memory, by boosting Theta brain waves [source:10]. Rather than spending years meditating to access consistently heightened brain wave states, this study showed that the same results can be achieved through a dose of L-Theanine. 

 

Reducing The Impact of Stress

Considerable research has been done into the impact of stress on memory. We now know that corticosteroids secreted after stress can cause memory loss [source:11].

An NCBI study on rats found that corticosteroid levels were lower in the rats who used L-Theanine compared to those who had none. In fact, stress had no effect on the animals who were fed L-Theanine, even when subjected to a stress-inducing exercise. Memory was not affected. The researchers concluded that L-Theanine modified corticosterone secretion, thus preventing memory loss otherwise induced by stress [source:12].

 

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Lowering The Incidence of Stroke

A huge study of 14,212 people in China concluded that drinking green, black or jasmine tea reduced the incidence of stroke by 40% amongst 35- to 60-year-olds [source:13].

Researchers at Simon Fraser University in Canada have recently developed new technology to measure brain wave patterns at a clinical level, allowing cognitive dysfunction to be detected early. This development has huge implications for the nootropics world in terms of performance and especially longevity. [source:14]

 

L-Theanine as Best Nootropics in Global Focus Nootropic

Improving Quality of Sleep

L-Theanine even enhances your quality of sleep. A Japanese study gave volunteers 200 mg of L-Theanine daily and analysed their sleep patterns. Participants showed an improvement in sleep quality, felt more refreshed, and recovered better from exhaustion [source:15].

EEG scans have demonstrated that L-Theanine smooths out brain waves [source:16], meaning that body and mind are relaxed, without causing sleepiness [source:17]. So you are better rested, more content and more alert.

 

Side Effects

L-Theanine is a naturally occurring amino acid and is considered non-toxic and very safe. However, L-Theanine seems to decrease blood pressure, and therefore those receiving treatment for high blood pressure may want to adopt caution when using L-Theanine, in case blood pressure becomes too low.

 

 

This information should be used for guidance only, please consult with a medical professional before taking any dietary supplement. Should you suffer from any ongoing medical conditions or have any concerns at all, consult your doctor in the first instance.

 

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References

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