Sleeping badly could make heart disease worse in women, according to a study.
Research into 700 people over five years in the US has found fewer than six hours of sleep a night, and in particular waking too early, has a 'significant' role in raising unhealthy levels of inflammation amongst women with coronary heart disease.
The relationship between poor sleep and higher levels of inflammation was not observed in men in the study.
Research in the US has found fewer than six hours of sleep a night could make heart disease worse in women
The findings of the research, published online in the Journal of Psychiatric Research, could provide evidence of how poor sleep contributes to the progression of heart disease in women, according to the authors.
'Inflammation is a well-known predictor of cardiovascular health,' said lead author Dr Aric Prather, a clinical health psychologist and assistant professor of psychiatry at University of California, San Francisco.
'Now we have evidence that poor sleep appears to play a bigger role than we had previously thought in driving long-term increases in inflammation levels and may contribute to the negative consequences often associated with poor sleep.'
Scientists have already documented that poor sleep is a risk factor in a number of chronic health conditions, including coronary heart disease.
All the participants in the study had coronary heart disease. They were asked about their sleep quality when they first enrolled on the study and then five years later.
Researchers at Johns Hopkins University in Baltimore, Maryland, earlier this week announced they had found four simple healthy habits could protect you from heart disease.
Researchers at Johns Hopkins University in Baltimore, Maryland, have said regular exercise, eating a Mediterranean-style diet, keeping a normal weight and not smoking could protect you from heart disease
They found simple lifestyle changes can boost health and cut the risk of death from all causes by 80 per cent over an eight-year period.
Regular exercise, eating a Mediterranean-style diet, keeping a normal weight and, most importantly, not smoking are the key healthy habits, say US experts.
Lead researcher Haitham Ahmed, of the Ciccarone Center for the Prevention of Heart Disease at Johns Hopkins, said ‘To our knowledge, this is the first study to find a protective association between low-risk lifestyle factors and early signs of vascular disease, coronary heart disease and death, in a single longitudinal evaluation.'
Read more: http://www.dailymail.co.uk/health/article-2336701/Fewer-hours-sleep-night-waking-early-increases-heart-disease-women.html#ixzz2VSdLADrS
Follow us: @MailOnline on Twitter | DailyMail on Facebook