The MTHFR gene provides instructions for your body to make the MTHFR protein, which helps your body process folate
MTHFR genetic mutations are common and it's not unlikely for individuals to have one or two copies of certain MTHFR variants
In this case, the patient—with chronic insomnia, fragmented sleep, and short sleep duration—was a homozygous carrier for the MTHFR C677T polymorphism
A genetic defect of the MTHFR gene can result in a malfunctioning MTHFR enzyme, which can affect methylation