Wildfire smoke can cause a variety of health effects, including:
Eye, nose, and throat irritation - Smoke can cause stinging eyes, a scratchy throat, and a runny nose. Its odor can also be nauseating.
Respiratory issues - Smoke can cause coughing, wheezing, and difficulty breathing. Inhaling fine particles, also known as PM2.5, can lead to bronchitis and other illnesses.
Heart issues - Inhaling carbon monoxide from smoke can decrease the body's oxygen supply, which can cause headaches, reduce alertness, and aggravate angina. Smoke can also put the heart at risk for cardiac strain.
Other health effects - Smoke can cause tiredness, upset stomach, skin rashes, trouble concentrating, nightmares, and trouble sleeping.