Apparently we should go to more funny movies:

Viewer responses to movies in a humorous vein (such as the 1998 comedy There’s Something About Mary) appear to have a beneficial effect on arterial endothelial function, reported researchers from the University of Maryland Medical Center here.

In contrast, responses to serious films, such as the heart-wrenching opening D-Day sequence in the 1998 drama Saving Private Ryan appear to constrict arterial blood flow, wrote Michael Miller, M.D., and colleagues in a scientific letter published in the February 2006 issue of the journal Heart.

I suppose some will extend this to TV sitcoms but my stress level seems to go up when a typical sitcom is running on our tube…the quality and humor is just so bad.