Does Loneliness Increase The Risk Of Heart Disease?

Have you ever wondered why seniors are more susceptible to heart disease? While age, compromised immune system, and existing illnesses are most common, another key factor that most of us ignore is loneliness and social isolation. Their health doesn’t allow them to be physically and socially active, which leaves them home-bound most of the time. This loneliness may affect their health and make them susceptible to heart disease.

We spoke to Dr Deebanshu Gupta, Cardiologist at Sarvodya Hospital, Jalandhar, and studied various scientific reports to validate the information so you read only factual and not hypothetical information.

The Link Between Loneliness and Heart Health

A 2025 study published in the journal 'Social Science & Medicine', established the potential link between loneliness and risk of coronary heart disease.

According to researchers, both loneliness and social isolation have different effects on heart health; however, both contribute to the rising risk of heart disease deaths globally. Opposed to the popular belief that isolation and loneliness arise due to a compromised heart, a study finds that chronic loneliness itself is a significant risk factor for coronary blockages.

How Social Isolation Affects Cardiovascular Function

Social isolation and loneliness trigger a chronic stress response, putting the body in fight-or-flight mode. This causes a rise in blood pressure, peripheral vascular resistance, and inflammation. Over time, this leads to an increased risk of stroke and heart attack, particularly in people with poor lifestyle habits.

Also Read: Senior Loneliness: A Silent Public Health Challenge That Demands Collective Action

According to a study published in 'Scientific Reports', over 33% of people aged 45 and above are lonely, and 25% adults aged 65 and above are dealing with social isolation. The meta-analysis of several studies found that loneliness and social isolation cause 29% higher risk of developing cardiovascular diseases.

Signs of Loneliness: Are You at Risk?

Loneliness is described as a phase where a person is disconnected or isolated from others, either due to a lack of interest or other reasons. It is a misconception that this is just an emotional state, whereas loneliness can have a long-term impact on your overall health and well-being. It is important to recognise the signs and symptoms, especially in senior adults, to avert the risk.

Here are some signs of loneliness:

• Hyper-attachment to habits: Lonely people tend to get over-attached to their habits to fill the void and pass their time.
• Changes in self-care: Lonely people tend to ignore self-care, leading to poor grooming, untimely eating, and unmanaged schedules.
• Avoidance: Withdrawing from social circles and distancing themselves from people.
• Sleep issues: Loneliness and social isolation can disrupt sleep patterns, causing insomnia and other sleep issues.
• Cognitive decline: Memory loss, poor focus, brain fog, etc., are signs of cognitive decline due to loneliness and isolation.

Also Read: Feeling Isolated at Work? Here’s How Workplace Loneliness Impacts Productivity

Heart Disease and Emotional Health: The Hidden Connection

Emotional health strongly affects cardiovascular function. According to the American Heart Association, when a person is feeling emotional or stressed, the brain releases hormones like adrenaline and cortisol, which increase heart rate, blood pressure, and inflammation. Over time, these heightened markers raise the risk of heart disease.

• Increased stress might also trigger blood clotting, raising the risk of coronary artery disease and heart attack.
• The American Heart Association also notes that heart patients frequently experience depression and anxiety, either due to the stress of future cardiac events, financial burden, or other reasons.
• Experts also note that intense emotional stress can mimic a heart attack, which is medically identified as 'broken heart syndrome' or stress cardiomyopathy.

Strategies to Combat Loneliness and Protect Your Heart

If you know someone who might be lonely and depressed, help them combat loneliness to protect their heart health. Here are some tips that will help:

• Strengthen and nurture relationships: Sometimes all we need is some time to bond with our loved ones. Staying in touch with family and friends over phone calls, video calls, and physical meetings can prevent a person from feeling lonely.
• Offer support: If you know someone in your neighbourhood who might be socially isolated and in need of support, speak to them. Spend some time with them to make them feel loved and valued.
• Physical activity is helpful: The best way to combat loneliness is by engaging in some physical activity. Joining fitness groups and other classes would help you come out of the bubble and build social connections.

Final Word

Loneliness and isolation are far worse than we think. These not only hamper psychological and emotional well-being but also put cardiovascular health at risk. Particularly, senior adults are at a greater risk owing to their age, medical condition, and vulnerability.