Smoking Fewer Than 5 Cigarettes a Day Damages Your Lungs Almost as Much as Smoking a Whole Pack, Study Says

Health officials have long argued there’s no safe amount of smoking—but, even still, many people assume a cigarette here and there doesn’t hurt. A new study published in the Lancet Respiratory Medicine puts that notion to rest: It found smoking just a handful of cigarettes per day causes lung damage similar to smoking more than a pack per day. The study examined the smoking habits and health of more than 25,000 Americans ages 17 to 93. At baseline, each person told the researchers how much they smoked (as well as general information about their health, demographics and lifestyle) and had a spirometry exam, which assesses lung function by measuring how much air can be exhaled in a second, as well as how much air the lungs can push out in total after taking a deep breath. Participants were then tracked for up to 20 years, during which time they had at least one more spirometry test to assess changes in lung health. Lung function naturally declines with age, but smoking is known to accelerate the process, putting smokers at risk of chronic obstructive pulmonary disease and other respiratory conditions. And as the researchers demonstrate in the new study, nearly any amount of smoking seems to kickstart that effect. When the study began, about 10,000 of the study participants had never smoked, while 7,000 had quit; 5,800 had vacillated between quitting and smoking; and 2,500 currently smoked. Over time, the researchers found that both former and current smokers...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized onetime Research Smoking Source Type: news

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This study was conducted on a sample of 42 COPD subjects with patient history, COPD assessment test (CAT) and spirometry. 5STST performance time and the number 30s-STST repetitions showed differences of statistical significance in COPD subjects considered to be more symptomatic and in subjects with high risk of future exacerbations. Both STSTs correlated significantly with forced expiratory volume in one second % predicted (FEV1%), CAT, number of acute exacerbations in the past year and number of hospitalized exacerbations in the past year. STST performance correlates significantly with items of the CAT questionnaire that ...
Source: COPD: Journal of Chronic Obstructive Pulmonary Disease - Category: Respiratory Medicine Tags: COPD Source Type: research
AbstractAimsHeart failure (HF) and chronic obstructive pulmonary disease (COPD) are main causes of dyspnoea, and echocardiography and spirometry are essential investigations for these diagnoses. Our aim was to determine the prevalence of HF and COPD in a general population, also how the diseases may be identified, and to what extent their clinical characteristics differ.Methods and resultsIn the seventh survey of Troms ø study (2015–16), subjects aged 40 years or more were examined with echocardiography, spirometry, lung sound recordings, questionnaires, including the modified Medical Research Council (mM...
Source: ESC Heart Failure - Category: Cardiology Authors: Tags: Original Research Article Source Type: research
This study explored the relationship between PM10 by remote sensing and AECOPD in Chaharmahal-o-Bakhtiari province from 2014 to2018.MethodPM10 concentrations were predicted and validated based on aerosol optical depth (AOD) from 161 images processed by MODIS sensor and ground air quality monitoring station data. Demographic information and spirometric indices of 2038 patients with AECOPD were collected and analyzed from the hospital during the studied periods. SPSS software was used to analyze the relationships between these two categories of information.ResultsThere was a significant negative relationship between PM10 and...
Source: Journal of Environmental Health Science and Engineering - Category: Environmental Health Source Type: research
AbstractIntroductionFew studies have utilized 24-h serial spirometry to compare the effects of inhaled chronic obstructive pulmonary disease (COPD) therapies on lung function. The FULFIL study previously reported significant lung function improvements with once-daily single-inhaler fluticasone furoate/umeclidinium/vilanterol (FF/UMEC/VI) versus twice-daily single-inhaler budesonide/formoterol (BUD/FOR) in patients with symptomatic COPD at risk of exacerbations.MethodsThis prespecified analysis evaluated 24-h serial spirometry data from a subgroup of 406 patients in FULFIL. BUD/FOR twice-daily dosing was maintained during 2...
Source: Advances in Therapy - Category: Drugs & Pharmacology Source Type: research
Abstract BACKGROUND: Whether pharmacological therapy alters decline in forced expiratory volume in 1 second (FEV1) in chronic obstructive pulmonary disease (COPD) remains controversial. Because pharmacotherapy improves health status, exacerbation rate and symptoms, it is unethical to complete placebo-controlled long-term studies aimed at modifying FEV1 decline. OBJECTIVE: We conducted a systematic review of placebo-controlled pharmacological trials lasting ≥1 year to address the question of whether therapy alters FEV1 decline. METHODS: A literature search for randomized trials that included repeated s...
Source: American Journal of Respiratory and Critical Care Medicine - Category: Respiratory Medicine Authors: Tags: Am J Respir Crit Care Med Source Type: research
Chronic obstructive pulmonary disease (COPD) is the third leading cause of death in the United States with no effective treatment. The current diagnostic method, spirometry, does not accurately reflect the sev...
Source: Respiratory Research - Category: Respiratory Medicine Authors: Tags: Research Source Type: research
z-Campos JL Abstract OBJECTIVE: The aim of this study was to analyze current data on the population's level of knowledge about COPD and to evaluate certain diagnostic interventions, such as the use of spirometry. MATERIAL AND METHODS: An epidemiological, observational, cross-sectional study by telephone interview, with random dialing of landline telephone numbers, was conducted in November 2019, in a nationally representative sample of adults over 40 years of age. RESULTS: From a total of 51,079 telephone calls, a total of 1,920 individuals responded. Mean age was 61.9 years and 31.6% were men. Over...
Source: Archivos de Bronconeumologia - Category: Respiratory Medicine Authors: Tags: Arch Bronconeumol Source Type: research
iacute;o BG, Sánchez G, Ancochea J Abstract BACKGROUND: Two previous national epidemiological studies, IBERPOC in 1997 and EPISCAN in 2007, determined the COPD burden in Spain. Changes in demographics and exposure to risk factors demand the periodic update of COPD prevalence and its determinants. METHODS: EPISCAN II aimed to estimate the prevalence of COPD in the general population aged 40 years or older in all 17 regions of Spain. A random population screening sample, requiring 600 participants per region performed a questionnaire plus post-bronchodilator (post-BD) spirometry. RESULTS: A total of...
Source: Archivos de Bronconeumologia - Category: Respiratory Medicine Authors: Tags: Arch Bronconeumol Source Type: research
CONCLUSIONS: Implementing the CLHT to patients referred to CR correctly identified COPD in
Source: Journal of Cardiopulmonary Rehabilitation and Prevention - Category: Rehabilitation Authors: Tags: J Cardiopulm Rehabil Prev Source Type: research
Conclusions Compared with CON, muscle oxidative capacity was lower in COPD in both upper (−20%) and lower (−30%) limbs. These data suggest that mitochondrial loss in COPD is not isolated to locomotor muscles.
Source: Medicine and Science in Sports and Exercise - Category: Sports Medicine Tags: CLINICAL SCIENCES Source Type: research
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