Tobacco doesn’t just damage your lungs and heart. It also weakens your immune system, making it harder for your body to fight infections and recover from illness. The chemicals in tobacco and nicotine can disrupt immune cells, trigger harmful inflammation and reduce the body’s natural defenses against viruses and bacteria.
When your immune system is under constant stress from tobacco exposure, everyday illnesses can hit harder and recovery can take longer. Learn how tobacco affects your immune system and why quitting can help restore your body’s natural defenses.
Last Modified on
Apr 15, 2026