L-tyrosine is an amino acid that plays a role in the body's stress response, commonly known as the "fight or flight" response. This response is a natural reaction to stressful or dangerous situations, and it helps the body to prepare for physical action. L-tyrosine is involved in this response because it is a precursor to several neurotransmitters that are important for regulating mood and stress. These neurotransmitters include dopamine, norepinephrine, and epinephrine.
Norepinephrine, also known as noradrenaline is a hormone released by the adrenal gland in response to stress and stimulates the body's sympathetic nervous system, leading to the release of adrenaline.
Adrenaline, also known as epinephrine, is another hormone and neurotransmitter that is released by the adrenal gland in response to stress and helps to increase heart rate, blood pressure, and blood sugar levels, preparing the body for physical activity.
Because of these properties, L-Tyrosine supplementation can help improve focus, concentration, and alertness.