Notes of interest

Proverbs 17:22  
A cheerful heart is good medicine, but a broken spirit saps a person's strength. (nlt)

The Week magazine, March 25, 2005:

"Laughter is good for your health—and now scientists know why. Researchers at the University of Maryland found that when 20 healthy volunteers smiled and guffawed while watching the comedy, Kingpin, their blood flow increased by 22 percent, about the same increase caused by aerobic exercise. But when volunteers watched tension-filled scenes from Saving Private Ryan, their blood flow decreased 35 percent.

"The researches say that laughing apparently causes the endothelium, the tissue that lines blood vessels, to expand, which increases blood flow. Laughter may also improve arterial heath by reducing mental stress, which constricts vessels and cuts blood flow. A healthy lifestyle—researcher Michael Miller tells New Scientist—would include 30 minutes of exercise three times a week, and 15 minutes of hearty laughter each day."

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