Smoke From Canada Reaches Michigan
Hazardous air quality has moved into Michigan as smoke from Canadian wildfires drifts across the region. Health officials and the American Heart Association are warning that this exposure can affect the heart, especially for people who already have cardiovascular problems.
Heart Conditions May Worsen
The American Heart Association says wildfire smoke can increase the risk of heart-related emergencies or make existing conditions worse. Fine particles in smoke can enter the body and place added stress on the cardiovascular system.
Studies Link Smoke to Cardiac Events
Research cited by the AHA has connected smoke exposure with a higher risk of sudden cardiac arrest and an increase in emergency room visits for cardiovascular causes.
Fine Particles Can Trigger Hospitalizations
Investigators have found that smoke from summertime wildfires can create short-term spikes in fine particulate air pollution. Those spikes have been significantly associated with same-day hospitalizations for unstable chest pain.
Heavy Smoke Raises Cardiac Arrest Risk
According to the AHA, one study found that exposure to heavy wildfire smoke increased the risk of out-of-hospital cardiac arrests by up to 70%. The elevated risk was seen in both men and women.
Some Groups Face Higher Risk
The same research found increased risk among adults ages 35 to 64 and in communities with lower socioeconomic status. People with existing cardiovascular risk factors may be especially vulnerable during periods of dense smoke.
Emergency Visits Also Increase
The AHA said emergency room visits rose 42% for heart attacks and 22% for ischemic heart disease within a day of exposure to heavy wildfire smoke. The increase was most notable among adults age 65 and older.
How to Reduce Smoke Exposure
Residents are advised to stay indoors with doors and windows closed. High-efficiency air filters in air conditioning systems or portable air cleaners can help reduce indoor exposure.
Avoid Exertion and Stay Hydrated
Health officials also recommend avoiding strenuous activity, staying hydrated and seeking another shelter if a home does not have air conditioning and becomes too hot to remain indoors safely.
Pets Can Be Affected Too
People are also reminded that pets may be affected by wildfire smoke. Bringing animals indoors can help reduce their exposure when outdoor air quality is poor.
Warning Signs of a Heart Attack
The AHA advises calling 911 during periods of heavy smoke exposure if chest discomfort occurs. This may feel like pressure, squeezing, fullness or pain in the center of the chest, lasting more than a few minutes or returning after going away.
Other Symptoms to Watch For
Heart attack symptoms may also include discomfort in one or both arms, the back, neck, jaw or stomach. Shortness of breath can happen with or without chest discomfort.
Additional Red Flags
Other possible warning signs include a cold sweat, nausea, rapid or irregular heartbeat, unusual tiredness or lightheadedness. Anyone experiencing these symptoms during smoke exposure should seek emergency help.
CPR Can Improve Survival
The AHA also notes that knowing and performing CPR can more than double the chance of survival after cardiac arrest. This makes public awareness especially important during periods of elevated heart risk.
Smoke Can Harm People Far From the Fires
Even though many people in the United States are not near the Canadian wildfires themselves, the lingering smoke can still be harmful. As air quality worsens, limiting exposure becomes an important step for protecting heart health.
