health
Is it true that ... your lungs regenerate when you quit smoking?
Our lungs have evolved to heal from damage, but some smokers will suffer irreversible effects

TL;DR
- Lungs possess a significant capacity to heal and repair themselves, especially after quitting smoking.
- This regenerative ability evolved to cope with environmental damage like pollution and infections.
- While quitting smoking generally improves lung health, some effects can be irreversible.
- Individual differences mean some people's lungs regenerate less effectively, increasing susceptibility to permanent damage.
- Quitting smoking as early as possible is encouraged, as lung repair efficacy decreases with age.
- A healthy lifestyle, including exercise, can support lung health and gas exchange capacity.