Fatigue
MTHFR in Fatigue, Brain Fog, and Athletic Performance
Methylenetetrahydrofolate reductase (MTHFR) is a gene involved in folate metabolism and methylation, a set of reactions that support DNA synthesis, red blood cell production, neurotransmitter balance, and amino acid metabolism.
Heart Rate Variability: What It Reveals About Your Health, Stress, and Recovery
Heart rate variability, often shortened to HRV, is the measurement of small changes in time between heartbeats. Even when your heart rate feels steady, the time between each beat is not perfectly identical.