Researchers Marcus Mund and Kristin Mitte at the University of Jena in Germany have released a new study that claims expressing anger could add years to people's lives.
The study, published in the journal Health Psychologies, may explain why the hotheaded Italians and Spanish live almost two years longer than the calm cool British.
The researchers found that exhibiting self-restraint and holding back negative emotions could mean serious problems for physical and mental well-being, reports the Daily Mail.
After analyzing more than 6,000 patients, the researchers found that people who internalized their anxiety suffered from an elevated pulse, which over time can result in high blood pressure and increase the risk of developing heart disease to cancer, kidney damage and more.
Mund told the Daily Mail: "These people are distinguished by the way that they attempt to conceal outward signs of fear, and also by their defensive behavior. They avoid risks and always seek a high level of control over themselves and their surroundings. For instance, when exposed to a stressful task they exhibit a higher heart rate and pulse ratio than non-repressors and show other objective signs of stress and anxiety."