Researchers looked at about 2,000 people 70-89 years old in the Mayo Clinic Study on Aging. About 1,600 were cognitively normal, 317 had mild cognitive impairment and overall, about 288 had COPD. COPD was found to be associated with almost two-fold higher odds of MCI, and the odds get worse the longer someone has COPD. Rates were similar among men and women.
“COPD is reversible in early stages, especially in smokers,” says study author Dr. Balwinder Singh. “These findings are important because they highlight the importance of COPD as a potential risk factor for MCI and will hopefully lead to early intervention to prevent incidence or progression.”
MCI is a stage between normal cognitive aging and dementia. People with mild cognitive impairment are at increased risk of progressing to dementia and Alzheimer’s disease.
COPD refers to a group of lung diseases that block airflow and make breathing difficult. Emphysema and chronic bronchitis are the two most common conditions that make up COPD. Chronic bronchitis is an inflammation of the lining of your bronchial tubes, which carry air to and from your lungs. Emphysema occurs when the air sacs (alveoli) at the end of the smallest air passages (bronchioles) in the lungs are gradually destroyed.
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