Yes. Stress can contribute to higher cholesterol levels, especially when it is ongoing.
- Stress hormones such as cortisol and adrenaline can temporarily increase circulating fats, including triglycerides and sometimes cholesterol.
- Chronic stress often changes habits that affect lipids: poorer diet, less exercise, more alcohol, smoking, disrupted sleep, and weight gain.
- It may also worsen blood pressure and blood sugar, adding to overall cardiovascular risk.
A laboratory medicine reference notes that mild stress can raise total cholesterol and may lower HDL ("good") cholesterol. One isolated high result does not prove stress is the cause, though. Diet, genetics, thyroid disease, diabetes, weight, medications, and alcohol can also matter.
If your cholesterol test was high, repeat testing under usual, stable conditions and discuss the full lipid panel and cardiovascular risk with your clinician. Stress reduction helps, but it should complement, not replace, diet, activity, weight management, and prescribed treatment if needed.