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Article: In new study, scientists link internal 'body clock' and heartbeat patterns
- Article from:
- Charleston Daily Mail
- Article date:
- January 4, 2005
- Author:
CopyrightCopyright 2005 Charleston Daily Mail. Provided by ProQuest LLC. (Hide copyright information)
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Scientists have long known that more heart attacks occur at
midmorning than any other time of day, and while they are not sure
why this happens, new research shows that the human "body clock"
influences heartbeat patterns, which become more erratic between 9
and 11 a.m.
Reporting in last week's Proceedings of the National Academy of
Sciences, researchers from Boston University, Harvard Medical School
and Boston's Brigham and Women's Hospital found that "interbeat
intervals" - the length of time between successive heartbeats - in
five healthy individuals most closely resembled the variability of
heart disease patients during the forenoon hours.
Physiologist Steven Shea, of Harvard Medical ...