There is something about singing that puts me in a better, more cheerful mood, but I don’t really know what it is. Increased oxygen intake? Distract you from other issues? A recent study has come out from Harvard Medical School documenting how a 76 year old arthritis patient with high blood pressure was able to lower her BP by 40hg by singing hymns, just before her surgery. I wonder if this has further implications than a single sample size.
Here is the link to this interesting article in Science Daily, as well as the journal article, published Mar 30, 2011. It is difficult to extrapolate from a sample size of 1, but maybe we could sing a little more?