Do smokers lungs heal after quitting?

Yes and no. Your lungs contain millions of small air sacs called alveoli. That's where oxygen gets exchanged for carbon dioxide. Smoking damages them, and they can never heal. That's what cause…

Top stories for Long   Do smokers lungs heal after quitting? Mats Andersson, Businessman at Language Industry (1991-present) • Answered December 15 Yes and no. Your lungs contain millions of small air sacs called alveoli. That's where oxygen gets exchanged for carbon dioxide. Smoking damages them, and they can never hea... Read more » 161 6   If (x + 4) ^x = 36, then what is the value of x? Please show the full solution. Don't use numerical methods and solve it analytically. Martin Jansche, works in any number system, as long as it's base 10 • Updated July 9, 2025 Look, it doesn't work like that. You cannot prescribe the way of solving equations like this one. I'll assume throughout that you are only interested in real solutions. The ... Read more » 304 46   Should you get divorced if you are in your 70s and not in love with your husband? Polly Fukuhara, former Retired • Updated December 24 I am 76 years old, and have been married to my husband for 46 years. I am NOT in love with my husband. I LOVE my husband. There is a difference. The first statement is for ... Read more » 2.2K 241   Do assistant professors really work every weekend, or is there some flexibility in their schedules? James W. Hoover, History Professor at Public Univ. in the U.S. • Answered January 8 I spent at least part of most weekends working when I was an assistant professor. At that stage in your career, you're usually especially productive. This is partly because... Read more » 31 1   Joe Biden is the reason why everyone points and laughs at America, why can't liberals see that? Alan, studied at University of Sheffield • Updated January 12 Oh we used to laugh at America when George W. Bush was President - because he made funny gaffes and was responsible for decision making that caused things like the great re... Read more » 9.4K 1.8K   Could an average person survive Navy SEAL training? James Clark, former Senior Chief at United States Navy (1994-2014) • Answered January 7 No. I have worked with a few guys that have made it through Buds and have witnessed their work out routine before they left for Buds. They began running about 8 months befo... Read more » 348 25   You have a 100 coins laying flat on a table, each with a head side and a tail side. 10 of them are heads up, 90 are tails up. How would you split the coins into two piles such that there are the same number of heads in each pile? Alex Eustis, Ph.D. Mathematics, University of California, San Diego (2013) • Updated July 28 LOL for some reason the question has been edited to remove the important caveat that you have to do it blindfolded, and it's impossible to tell which side is up by any meth... Read more » 64 9   Why didn't Barack Obama decline the Nobel Peace Prize, like how President Donald Trump did? Dalton Phillips, JD degree 1980 from University of Pennsylvania Law School • Answered December 25 The Nobel Peace Prize committee met and deliberated as they have been doing for years and awarded the prize to President Obama, which he graciously accepted. It appears tha... Read more » 1.8K 174   Do card counters really get beaten up by casino thugs, as portrayed in the movies? Ed Allegretti, lives in Bolivar, NY • Answered December 21 My wife and I were suspected of counting, falsely i might add. We were winning. More than luck allows. But all they see is chip stacks not actual gameplay. So we noticed th... Read more » 1.3K 40   Why isn't .h used in C++? Philippe Dunski, Author of the book "Coder efficacement" (in French) • Answered January 11 Hello, Why isn't .h used in C++? It is… Or, at least, it can be (and many C++ library use it). However, point is that .h is the traditional file extension for C headers and, e... Read more » 85 11   As a truck driver what happens if you get sick in the middle of a long-haul? Will you have to leave the truck somewhere, live in a motel until you get better, then fly back home? Ken Mitchell • Answered December 19 Happened to me. Loaded in Tulsa, Ok going to Baltimore, MD. Right before Christmas. Got to Joplin, Mo & parked for the night. Woke up sick as a dog. Called dispatch, told me... Read more » 790 26   If someone somehow invented the Star Trek replicator now, how will it affect society? Ken Lawton, Been a SciFi fan my entire life. No matter how old I get. • Answered December 28 Believe it or not, The Orville did an episode that addressed this exact topic. Like, exactly. The premise was that a person from some planet that is technology no different ... Read more » 1.4K 149 Read more in your feed

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