Experts warn of ‘popcorn lung’ dangers, citing evidence that vaping-induced lung damage cannot be undone | July 26, 2025

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Experts warn of ‘popcorn lung’ dangers, citing evidence that vaping-induced lung damage cannot be undone

In recent years, vaping has emerged as a popular alternative to traditional smoking, particularly among younger demographics. Marketed as a safer option, e-cigarettes have gained a foothold in the public consciousness as a less harmful way to enjoy nicotine. However, health experts are increasingly raising alarms about the potential long-term effects of vaping, particularly concerning a condition known as ‘popcorn lung.’

Popcorn lung, or bronchiolitis obliterans, is a serious and irreversible lung disease that has been linked to certain chemicals found in e-cigarette vapor. As vaping continues to rise in popularity, understanding the risks associated with this habit is more crucial than ever. Experts warn that the damage caused by vaping can be permanent, urging users to reconsider their choices before it’s too late.

1. Understanding Popcorn Lung: A Brief Overview

Popcorn lung, medically referred to as bronchiolitis obliterans, is a condition that affects the smallest airways in the lungs, the bronchioles. This disease causes scarring and inflammation of the airways, leading to symptoms such as coughing, wheezing, and shortness of breath. The condition earned its nickname from a notable outbreak among workers in microwave popcorn factories, where exposure to a chemical called diacetyl was identified as the cause.

Diacetyl, a flavoring agent used to give popcorn its buttery taste, was found to cause severe respiratory issues when inhaled in large quantities. The discovery of this link led to increased scrutiny of its presence in other inhalable products, including e-cigarettes. While the use of diacetyl in food is generally considered safe, its inhalation poses significant health risks.

2. The Rise of Vaping: A Modern Health Concern

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