Probably     http://mednews.wustl.edu/news/page/normal/14489.html
Research shows why low vitamin D raises heart disease risks in
diabetics

By Jim Dryden

"Aug. 21, 2009 -- Low levels of vitamin D are known to nearly double
the risk of cardiovascular disease in patients with diabetes, and
researchers at Washington University School of Medicine in St. Louis
now think they know why. ....

. ..They have found that diabetics deficient in vitamin D can't
process cholesterol normally, so it builds up in their blood vessels,
increasing the risk of heart attack and stroke. The new research has
identified a mechanism linking low vitamin D levels to heart disease
risk and may lead to ways to fix the problem, simply by increasing
levels of vitamin D. ......

....The good news is when human macrophages are placed in an
environment with plenty of vitamin D, their uptake of cholesterol is
suppressed, and they don't become foam cells. Bernal-Mizrachi believes
it may be possible to slow or reverse the development of
atherosclerosis in patients with diabetes by helping them regain
adequate vitamin D levels.

"There is debate about whether any amount of sun exposure is safe, so
oral vitamin D supplements may work best," he says, "but perhaps if
people were exposed to sunlight only for a few minutes at a time, that
may be an option, too." ........

Or did the 'dark loads of medicine" cause you MI.