Scientists have acknowledged a relationship and communication between the gastrointestinal tract and the brain for over 100 years. Current research shows natural microbes inhabiting the gut seem to play an integral part in controlling the permeability of the blood brain barrier.
Studies indicate that low levels of the thyroid hormone fT3 are associated with poorer outcomes in patients with cardiovascular disease and may be a useful risk analysis tool in this population.
In a 2016 published study, researchers evaluated the anti-stress, cognitive and neurophysiological effects of L-theanine in healthy adults. They found this amino acid was effective at reducing stress levels after various cognitive stress tests.
Resveratrol shows promise as a therapy for stabilising amyloid proteins in Alzheimer's patients