Diwali, the Festival of Lights, is celebrated with illuminated lamps and colourful firecrackers, symbolising the drive to dispel darkness and invite prosperity. Fireworks add an exhilarating visual element to the festivities, yet the bursts are accompanied by significant noise and air pollution. While these traditions are joyful, the intense noise can impact more than just the environment. Studies show it can have immediate and lasting effects on cardiovascular health, especially for those with pre-existing heart conditions.
To understand how loud firecracker-noise can harm your heart, OnlyMyHealth interacted with Dr Priya Palimkar, Senior Consultant — Cardiologist, Sahyadri Super Speciality Hospital, Pune.
Mechanisms of Noise-Induced Cardiac Stress
Dr Palimkar highlights the direct relationship between loud noises and cardiac stress, stating, "Loud noises can trigger a stress response in the body, characterised by the release of stress hormones like adrenaline and cortisol. This response can have several effects on the cardiovascular system." Some of these effects include:
Increased Heart Rate - The body may react to sudden loud noises with a reflex action leading to tachycardia, or an elevated heart rate.
Elevated Blood Pressure - Loud noises cause the release of stress hormones, which can lead to vasoconstriction, temporarily raising blood pressure levels.
Impact on Blood Vessels - Chronic exposure to loud noise is linked to atherosclerosis (hardening of the arteries), likely due to prolonged stress responses and hormone fluctuations affecting vascular health.
Also read: Tips to Safeguard Your Eyes from Cracker Burns In The Festive Season
Clinical Evidence Linking Noise and Heart Health
Dr Palimkar shares that studies have shown a connection between prolonged noise exposure and cardiovascular issues, including hypertension, heart failure, and even myocardial infarction (heart attack). She explains, "While these studies focus on chronic exposure, such as living near airports or busy highways, even short but intense noise episodes—like those during festive seasons—can be risky, especially for people with pre-existing heart conditions."
The evidence indicates that when the body perceives a noise as a threat, it triggers a series of physiological changes that place stress on the heart and blood vessels. Repeated or high-intensity exposures can make this stress worse over time, sometimes even triggering cardiovascular events.
Special Considerations for At-Risk Populations
Some populations are more vulnerable to the impact of loud noise on heart health. These include:
Individuals with Pre-existing Heart Conditions - For people with ischemic heart disease, arrhythmias, or heart failure, the effects of loud noises can be more pronounced.
The Elderly - Age reduces the body’s ability to tolerate additional stress on the heart, making older adults more susceptible to noise-induced cardiac strain.
Those with Anxiety or Sound Sensitivity - Individuals with anxiety disorders or hyperacusis (an increased sensitivity to everyday sounds) may experience heightened distress from loud noises, which can strain the cardiovascular system further.
Also read: Crucial Steps To Take If Heart Disease Runs In Your Family
Preventive Measures to Protect Heart Health
To minimise the potential risks associated with loud noises during festive seasons, Dr Palimkar recommends several practical tips:
Use Ear Protection - Simple devices like earplugs or earmuffs can reduce the intensity of noise exposure, offering immediate protection.
Maintain Distance - Standing farther from the source of loud noises can lessen the impact on your ears and heart.
Opt for Quieter Fireworks - Choosing low-noise fireworks provides a festive atmosphere without compromising heart health.
Awareness and Education - Spreading awareness about the risks of loud noises and promoting quieter celebration options can foster safer, heart-conscious celebrations.
Conclusion
While Diwali traditions play a significant role in cultural celebrations, it is essential to balance enjoyment with safety. "The loud noises from crackers can be risky for heart health, especially for those with existing health issues. Additionally, chemicals released from these fireworks can harm heart health too," Dr Palimkar advises. By taking simple precautions and spreading awareness within communities, we can all celebrate in a way that honours tradition while safeguarding our well-being.
This Diwali, as we welcome the festival with lights and joy, let’s remember that a few mindful adjustments can keep our hearts safe and our spirits high.