We all deal with stress. Whether it’s stress from a job, financial, or relationship issues, chronic stress has been linked to an increased risk for developing cardiovascular disease [1-2]. However, there hasn’t been a biological marker that could be used to measure an individual’s level of stress. A recent study performed by researchers at the University of Western Ontario Schulich School of Medicine & Dentistry and published in the journal Stress has found that the level of cortisol in hair can be used as a biomarker to measure chronic stress and the risk of heart attack in men [3].