Laughter to Help Blood Flow?
Researchers have found evidence that laughter may provide some of the same
benefits as exercise. They saw that blood vessels relaxed and blood flowed more
smoothly after 20 volunteers watched 15 minutes of a funny movie (Kingpin
The same group watched a serious, often disturbing movie (Saving Private Ryan
Fourteen of those individuals experienced restricted blood flow. The changes
lasted for up to 45 minutes after the volunteers watched both movies.
The increase in blood flow is beneficial to the endothelium, which comprises
the tissues that line the walls of blood vessels and regulate blood flow.
Problems with the endothelium have been linked to hardening of the arteries,
which increases the risk of heart attack.
The study was small, but it indicates that it’s possible that we all could
benefit from making sure that we find time for laughter in our daily lives.
Findings from the study were presented at a conference of the American College
of Cardiology in March.
The Sun, 11 March 2005