A member asked:

I was wondering about lung damage brought on by smoking, 10 a day, started at 17, quit at 21. i vigorously exercise now, will lungs completely heal?

A doctor has provided 1 answer
Dr. Randy Baker answered

Specializes in Holistic Medicine

Probably: Any damage done by smoking 10 cigs a day for 4 years is likely to heal completely over time. Congratulations on stopping! see http://whyquit.Com/whyquit/a_benefits_time_table.Html for a timetable of how your body heals.

Answered 5/7/2016

4.4k views

Thank

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