According to the US researchers, the lack of sunshine during winter may cause diminishing vitamin D levels in the body and lead to heart woes.
Sunshine is needed to the body to produce vitamin D, due to less daylight and spending more time indoors in winter can slowdown this process.
Study author Sue Penckofer, who is a professor at the Marcella Niehoff School of Nursing at Loyola University in Chicago, says in a university news release: “Chronic vitamin D deficiency may become the cause of high blood pressure, heart disease and metabolic syndrome.”
In their study, Sue and team reviewed many such studies that associated heart disease to vitamin D deficiency. According to these studies, severe heart disease or heart death rates are 30 to 50 percent higher in the patients with sun-deprived heart diseases.


Various diseases have long been associated with the low blood levels of ‘vitamin-D’. It is general assumption worldwide that the ‘vitamin-D’ is a good supplement and helps preventing many diseases. Scientists however, feel that this existing assumption that hundreds of genes are dependent on vitamin D now must be given a re-consideration in the light of new study.