Heart Disease Markers Linked to Sleep in Women
Reported July 02, 2009
(Ivanhoe Newswire) – Women who get less sleep are more likely to have
higher levels of biomarkers linked to heart disease.
According to British researchers who followed more than 4,600 people in
their mid-30s, women who reported sleeping seven hours a night had higher
levels of IL-6 than those who reported sleeping eight hours. Those sleeping
five hours or less had higher levels of hs-CRP. The findings held true even
after the investigators adjusted the results to take other factors
influencing sleep into account.
No such relationships between the biomarkers and sleep were found in men.
The researchers believe the study adds to the evidence linking sleep and
heart disease, and also points out significant differences in the way sleep
duration affects cardiovascular risk between the sexes.
So, do men escape the ill effects of poor sleep? No, report the
investigators. Overall, the study found poorer health status and lifestyle
profiles for both men and women who slept five hours a night or less. On the
other end of the spectrum both men and women who slept for nine hours or
more were more likely to be in poorer health.
Seven to eight hours of sleep per night appears to be optimal, conclude the
SOURCE: SLEEP, published online July 1, 2009