l-Theanine reduces psychological and physiological stress responses

  title={l-Theanine reduces psychological and physiological stress responses},
  author={Kenta Kimura and M. Ozeki and L. Juneja and H. Ohira},
  journal={Biological Psychology},
  • Kenta Kimura, M. Ozeki, +1 author H. Ohira
  • Published 2007
  • Medicine
  • Biological Psychology
  • L-Theanine is an amino acid contained in green tea leaves which is known to block the binding of L-glutamic acid to glutamate receptors in the brain. Because the characteristics of L-Theanine suggest that it may influence psychological and physiological states under stress, the present study examined these possible effects in a laboratory setting using a mental arithmetic task as an acute stressor. Twelve participants underwent four separate trials: one in which they took L-Theanine at the… CONTINUE READING
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