Abstract: The present invention provides methods of improving physiological responses related to post-traumatic stress disorder, wherein the free amino acid beta-alanine, or a salt or ester thereof, is administered to an individual as a human dietary supplement over a period of time in an amount effective to improve physiological responses related to post-traumatic stress disorder.

Abstract: The present disclosure provides methods of maintaining brain function, memory function and reducing the prevalence of mild traumatic brain injury in an individual at risk of experiencing a mild traumatic brain injury. The present disclosure also provides methods for administering various human dietary supplements to individuals at risk of experiencing a mild traumatic brain injury.

Abstract: The present invention provides methods of maintaining or improving tactical performance and/or psychomotor performance, wherein the free amino acid beta-alanine, or a salt or ester thereof, is administered to an individual as a human dietary supplement over a period of time in an amount effective to maintain or improve tactical performance and/or psychomotor performance under normally stressful and/or fatiguing high intensity physical activity.