Untreated anxiety can cause heart problems. Anxiety can lead to a rapid heart rate (tachycardia) due to the activation of the body's "fight or flight" response. In severe cases, chronic anxiety can interfere with normal heart function, increasing the risk of sudden cardiac arrest. Research has shown that anxiety disorders are associated with the onset and progression of cardiac diseases, and individuals with unmanaged anxiety may have a higher likelihood of experiencing heart attacks, which can be more fatal compared to their peers. Moreover, anxiety may be linked to risk factors for heart disease, stroke, and diabetes, emphasizing the importance of managing anxiety to protect cardiovascular health.