Here is a number worth a quiet toast, ideally with something non-alcoholic. America now has 56 million former smokers and 27 million current ones. The quitters outnumber the smokers two to one.
If you are one of the 56 million, congratulations. You did the hardest thing in preventive health.
Now the news you may not want: quitting was chapter one. It was not the whole story.
A large study in JAMA Network Open, a medical journal, followed roughly 150,000 people. Its finding for ex-smokers is remarkably clean. Former smokers who followed standard guidance on weight, exercise, diet and alcohol had a 27% lower risk of dying — from any cause — than ex-smokers who did not.
Twenty-seven percent. From habits. Not from a new drug, not from a subscription, not from anything sold in a pouch or a podcast ad. From the boring stuff, done consistently.
Why follow-through matters
The uncomfortable science is that the body forgives slowly. Lung-cancer risk for former smokers stays three to four times higher than for people who never smoked — for decades after the last cigarette. The plaque smoking builds in arteries takes 20 to 30 years to clear.
So an ex-smoker in his sixties is still, medically speaking, carrying luggage from his thirties. That is not a reason for gloom. It is a reason for maintenance. The 27% number says the luggage gets lighter for people who work at it.
What working at it looks like is mercifully specific. Exercise, most days. A diet leaning on antioxidant-rich foods — think colorful fruits and vegetables. Test your home for radon, an invisible gas that raises lung-cancer risk; the test kit is cheap and sold at hardware stores. And do not swap the old habit for a vape on the theory that it is the safe version. The guidance there is one word: don’t.
Notice what the list is not. It is not exotic. No injection, no biohacking protocol, no $400-a-month longevity subscription. Everything on it lives at a grocery store, a sidewalk or a hardware store.
The one phone call
Then there is the item most ex-smokers skip, and it is the one we care about most: annual lung-cancer screening.
If you smoked around a pack a day for years, insurance often covers a yearly low-dose screening scan. Covered. Every year. Screening exists to catch the thing early, while it is a problem instead of a diagnosis. And the people who most qualify are exactly the long-ago quitters who assume it no longer applies to them.
So here is the homework, and it costs nothing. Call your insurer and ask one question: “Given my smoking history, am I covered for annual lung-cancer screening?”
If the answer is yes, book the scan. If you are on Medicare, ask the same question at your next wellness visit. Ten minutes of phone call, once a year. That is the whole program.
Why this is here
Because health is the retirement asset that never shows up on a statement, and it is usually the biggest one you own.
We spend our working days fine-tuning portfolios — a fee shaved here, a smarter withdrawal order there. Worthy work. But a 27% cut in the risk of dying is a bigger number than anything on our shelf, and this one costs zero dollars. A free habit change outperforms most financial products ever built.
A retirement plan is just money waiting for a healthy person to spend it. The 56 million who quit already proved they can do the hard part. The study says the encore — the walking, the vegetables, the radon kit, the annual scan — is what turns a longer life expectancy into an actual longer life.
You won the big bet. Collect the winnings.