What role does HDL play in stress?

The role of HDL in stress is not fully established. HDL (high-density lipoprotein) is primarily known for reverse cholesterol transport and has anti-inflammatory and antioxidant properties. Chronic stress may lower HDL levels via activation of the HPA axis and elevated cortisol, potentially increasing cardiovascular risk. However, the relationship is complex: stress also affects lifestyle factors like diet, exercise, and sleep, which in turn influence HDL. The provided context lacks direct studies on HDL and stress; evidence comes from general lipid and stress research, not specific human trials. Consumer DNA tests linking HDL to stress often rely on weak associations and should be interpreted cautiously. A single HDL measurement is not a reliable stress marker. Safety note: HDL testing is useful for cardiovascular risk assessment but not as a standalone stress indicator. Consult a physician for abnormal results or persistent stress symptoms.