Related StoriesSeverely obese children face higher risk of developing heart disease, diabetesHeart disease becomes the main killer of women in NorwayDisclosing genetic risk for CHD outcomes in lower low-density lipoprotein cholesterol Lifestyle factors – including smoking, a bad diet and insufficient exercise – contribute to an individual's threat of heart disease, but a number of genes are also found to play a role. The extensive study was led by Shu Ye, Professor of Molecular Medication and Genetics at Queen Mary, University of London. Professor Ye said: Recent studies have identified numerous genetic regions that are associated with coronary heart disease. However, to translate these results into new therapeutics which could benefit patients, we have to understand how these genetic variants are influencing the disease.Falls in homebound older people often lead to disability and placement in a nursing house, said lead writer Denise Houston, associate professor of gerontology and geriatric medicine at Wake Forest Baptist Medical Center in Winston-Salem, N.C. Homebound seniors tend to have poor eating habits and little exposure to sunlight, putting them in increased risk for low vitamin D levels, she and her colleagues noted. They arranged to have vitamin D supplements sent to Meals on Wheels clients. Over five months, 68 homebound seniors received either a monthly vitamin D health supplement of 100,000 worldwide units or a placebo with their Foods on Wheels prepared-food deliveries. In the beginning of the scholarly study, more than half of the seniors had insufficient vitamin D levels, and fewer than one-quarter had optimal levels.