Dobnig and colleagues, who reported their findings in the Archives of Internal Medicine, studied more than 3,200 people with an average age of 62 who were scheduled for a heart exam between 1997 and 2000.
During an eight-year follow-up the researchers found that the quarter of volunteers with the lowest levels of vitamin D in their blood were at greater risk of dying.
Even when accounting for factors such as heart disease, exercise and other conditions, the researchers found that the risk was double for people with between 5 to 10 nanograms per millilitre of vitamin D in their blood, Dobnig said. ~ Reuters, 23 June 2008
Here's another reason why we should bask in the sunlight of the early mornings or the late afternoons, or why we should drink fresh milk even we are adults already.