US scientists have found why heart attacks and strokes occur in the early hours most often.
According to the Emory University researchers daily rhythms in the activity of those cells which line blood vessels can be the key factor in this connection.
The researchers found that these cells activity was at its lowest during the early hours of the morning.
The study has been presented to an American Heart Association conference and it seems to suggest that low cells activity make c less able to relax and it raises the risk of problems.
Endothelial progenitor cells from the bone marrow are considered playing an important role in maintaining the lining of the blood vessels.
The researchers examined whether cell activity and the blood vessels properties changed at different hours of the day. 12 healthy middle aged volunteers were tested after every four hours period throughout a 24-hour period.
It was found that the ability of the blood vessels to relax and EPC’s ability was at its peak at midnight.
Dr Ibhar Al Mheid, who led the study, said: “The lining of vessels seems to function better at night. And endothelial function is often depressed during the early morning hours.”
“These findings suggest that control is linked to daily or circadian rhythms in the brain,” Mheid added.
Be First To Comment
Related Post
Leave Your Reply Here