• Psychological Impact of Events: Experiencing a heart attack, stroke, or heart failure can be a traumatic event, leading to fear of death, disability, and financial problems that trigger depression or anxiety. 
• Reduced Energy and Function: The physical limitations imposed by heart disease can make it difficult to engage in activities, leading to a loss of self-confidence and further symptoms of sadness or withdrawal. 
• Increased Mental Health Disorders: Studies show that a significant percentage of people experience depression or anxiety following a cardiac event, with rates particularly high after heart surgery. 

Direct Biological Pathways: Chronic stress, depression, and anxiety can cause physiological changes, including increased heart rate, blood pressure, and cortisol levels, which can contribute to heart disease over time.

Risky Health Behaviors: Mental health issues can lead to behaviors that are detrimental to heart health, such as poor diet, lack of exercise, and increased smoking, further elevating the risk. 

• Physiological Responses to Stress: Mental stress can cause a temporary reduction in blood flow to the heart and increased arterial constriction in individuals with existing atherosclerosis.