do cigarettes expire anandtech Photos by Amir (@stiffmoods) · May 23, 2026 Photos by Amir (@stiffmoods) ·

Primary malignant growths of the lung

Yes, lung function improves after quitting, but damage like COPD may be permanent if exposure was long-term

[140] Further reports confirmed this link in the 1980s and concluded in 1986 that passive smoking was also harmful

[9] German scientists identified a link between smoking and lung cancer in the late 1920s, leading to the first anti-smoking campaign in modern history, albeit one truncated by the collapse of Nazi Germany at the end of World War II

They attempted to reduce their risk by going back to smoking

In fact, smoking can cause periodontitis, a serious gum infection that can cause pain and tooth loss