Will Green Tea Help Fight Stress and Insomnia – The Answer of Experts

Experts recommend trying the effect of the substance L-theanine with a cup of high-quality green tea – but very carefully and under medical supervision.

The substance L-theanine in certain cases has a beneficial effect on the human body.

L-theanine is a plant-based amino acid found in the leaves and stems of tea and some mushrooms. It has a positive effect on some neurotransmitters associated with stress and sleep, increases the synthesis of dopamine and serotonin, which is important for sleep and is also involved in the formation of GABA, a neurotransmitter that affects our response to stress.

L-theanine stimulates alpha brain wave activity (a marker of relaxation).

In simple terms, L-theanine is useful for:

  • improving sleep;
  • reducing stress and anxiety;
  • improving concentration and memorization.

However, experts recommend trying the effect of L-theanine with a cup of high-quality green tea, and you should definitely consult with your doctor about the medicinal use of L-theanine.

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Written by Emma Miller

I am a registered dietitian nutritionist and own a private nutrition practice, where I provide one-on-one nutritional counseling to patients. I specialize in chronic disease prevention/ management, vegan/ vegetarian nutrition, pre-natal/ postpartum nutrition, wellness coaching, medical nutrition therapy, and weight management.

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