A new study of Chinese adults finds a link between air pollution and a higher risk of developing atherosclerosis, or coronary artery calcification, as well as death from heart disease.
To investigate the influence of air pollution, a team of researchers analyzed data on 8,867 Chinese people whose age varied from 25 to 92 years. All of them had suspected coronary heart disease and were recruited between 2015 and 2017.
The analysis showed that for each nitrogen dioxide increase of 20 μg/m3, the risk of having a high coronary artery calcium score increased by 24.5 per cent, and for each 30 μg/m3, the risk increased by 27.2 per cent.
The lead author Meng Wang says: “This study may provide evidence that coronary atherosclerosis is a pathological pathway through which air pollution exposure increases risk of death from coronary heart disease.”
A small observational study by a team of Egyptian researchers linked gray hair to atherosclerosis, a heart disease in which plaque accumulates in the arteries.
For the research, the scientists analyzed the prevalence of coronary artery disease in 545 men and divided them into subgroups according to the presence of disease and the amount of gray or white hair.
Having analyzed the given data, the researchers found that a man’s hair whitening score, age, and dyslipidemia and hypertension (heart disease risk factors) were independent predictors of atherosclerosis.
Dr. Irini Samuel, a cardiologist at Cairo University in Egypt, says: “If our findings are confirmed, standardization of the scoring system for evaluation of hair graying could be used as a predictor for coronary artery disease.”
According to a recent research, brisk walking for just 20 minutes a day may reduce the risk of heart disease by 25% in women under 50. Researchers also say that it’s no matter how you get the exercise as long as you do at least 2.5 hours a week.
Even if a woman is overweight, she can still reduce her risk of heart disease walking every day for at least 20 minutes.
Professor Andrea Chomistek from Indiana University’s School of Public Health says: “Our reason for carrying out this study was primarily to focus on younger women. We wanted to identify steps that young women could take to lower their incidence of coronary heart disease.”
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