Association between sleep quality and severity of lung disease


  • An American study showed that episodes of COPD are linked to insomnia.
  • In France, 5-10% of people over the age of 45 suffer from this lung disease.

95% more outbreaks of disease than those who sleep well: This is the risk for patients with COPD or COPD, who do not sleep enough.

COPD is a chronic respiratory disease caused by persistent and progressive inflammation and obstruction of the airways.

Over time, these episodes, manifested as shortness of breath and coughing, can cause irreversible lung damage and accelerate disease progression and death.

Fall into the antibodies

Published in the magazine sleeping, These findings may partly explain why African-American patients with COPD tend to fare worse than white patients, said first author Aaron Poe, MD, a clinical assistant in the division of pulmonary, critical care, and allergy medicine. and sleep from the University of California. Cardiovascular Research Institute.

“African Americans are over-represented in lower-income neighborhoods, where people are less likely to get good sleep. They may live in crowded spaces, with multiple roommates, have less comfortable sleeping conditions, such as a couch, and may have a job with a schedule Resilient lends itself to disrupted sleep,” says Pugh, noting that research shows that poor sleep is linked to decreased infection-fighting antibodies and protective cytokines.

Cytokines are essential molecules that the immune system naturally produces.

Over a three-year period, the researchers recorded flare-ups, defined as short-term exacerbations of symptoms requiring treatment, and compared their incidence with self-reported sleep quality data from 1,647 COPD patients.

They found that lack of sleep increased the risk of seizures by 25-95%.

The effect is more pronounced than the effect of smoking

In fact, at the start of the study, the average age of the participants was 65 years and the middle stage of the disease was mild. More than half (57%) of the participants were men; 80% were white and 14% were African American.

All were smokers or former smokers, which is not surprising because in more than 80% of cases, COPD is caused by smoking.

The researchers found that, compared to participants who had perfect sleep, those with basic poor sleep were 25% more likely to relapse within a year, and about 95% more likely the next year for those whose sleep was the worst.

“This may represent a more pronounced effect of smoking over a 40-year period, compared to a 60-year period,” Poe said.

sleep hygiene

African Americans 63% reported poor sleep, compared to 52% for white participants.

“While factors such as health insurance coverage or respiratory risk may play a significant role in disease severity, poor sleep may gain greater importance as the social status of African Americans improves,” Poe said.

“This can lead to a kind of paradox: By reducing one risk factor, a new risk factor – lack of sleep – can replace it,” he adds.

Sleep issues are often overlooked by doctors who evaluate COPD patients, said lead author and pulmonologist Nita Thakur, of the University of California, San Francisco, School of Medicine.

However, sleep hygiene and sleep aids “can greatly improve their health,” she said.

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