Does cooking on a gas stove release particles that affect brain health?

What's actually in it

Gas stoves burn natural gas and propane, releasing nitrogen dioxide (NO2), carbon monoxide, and fine particulate matter (PM2.5) directly into your kitchen. Even electric stoves release particles when food is cooked at high heat, but gas stoves add the combustion byproducts on top of that.

PM2.5 particles are small enough to enter the bloodstream through the lungs. Once in the blood, they can cross the blood-brain barrier. Chronic low-level exposure to indoor air pollution has been studied for decades in relation to lung disease, but newer research has focused on the brain.

What the research says

A 2026 study in a kitchen air quality cohort found associations between cooking behaviors, kitchen PM2.5 levels, and cognitive function. People with higher kitchen particle exposure showed differences in cognitive performance measures.

The risk is highest in small kitchens without windows or a range hood, cooking fatty foods at high heat, and using gas burners for extended periods. Children and older adults are most affected by indoor air quality.

Running a range hood while cooking, opening a window, or using an air purifier nearby cuts particulate exposure significantly. If you're considering a kitchen upgrade, induction cooktops eliminate combustion entirely.