Tetrahydrobiopterin (BH4) is an essential cofactor in the production of neurotransmitters and nitric oxide. Genetic variants impact BH4 levels which can affect heart disease, cognitive function, and immune response.
Some supplements interact with COMT variants to impact the rate at which neurotransmitters are broken down. Check your COMT genotype and discover how this may affect your reaction to different supplements or combinations of supplements.
Some people age naturally with beautiful-looking skin. Others slather on creams and odd gunk in a futile battle to chase away wrinkles and age spots. What is the difference? Genetics and environmental factors, of course.
Tryptophan is an amino acid that the body uses to make serotonin and melatonin. Genetic variants can impact the amount of tryptophan that is used for serotonin. This can influence mood, sleep, neurotransmitters, and immune response.